Subaru WRX 5 Speed Gear Set Comparisons
Flatirons Tuning Tech Tip - Subaru WRX 5 Speed Gear Set Comparisons
If you have a Subaru WRX with a 5-Speed transmission, and you start making power, you will likely start thinking about your transmission. The two most common gear sets that come up if you are looking to change/up-grade your gear ratios, etc. are the Legacy GT Gears (similar to the STI V.6 gears) and the STI RA Gears.
We put together kits to help make it as easy as possible to swap these gears into your WRX, but we thought a video might help explain what exactly the differences in these gear sets are.
A few years ago, we also wrote up a comparison of these gear sets, that has a more specific comparison of the different ratios, etc. Here is a link to that:
www.flatironstuning.com/blog/...
Thanks for watching!
If you are interested in any of these gear sets, here are links to them on our web-site:
Legacy GT Gears"
www.flatironstuning.com/2005-...
Type RA 5-Speed Gears
www.flatironstuning.com/sti-r... - The RA gears are now discontinued unfortunately.
Version 6 STI Gears
www.flatironstuning.com/sti-v...
I am loving these Videos! Keep up the great work and killer information! I recently swapped in a LGT gearset into my wrx and this was a helpful video.
Thanks!
Another great video! Any plans for one on a 6 speed box?
Firstly your videos are some of the best on KZhead and I really appreciate you sharing your knowledge with all scoobaru crew around the globe. I been looking around to see what options are available for sequential gear selection. I see there are some kits available for 6 speed boxes that use the standard factory gearbox case and the gear stick is a direct fit to the box, no linkage rods etc pushing the H pattern around. Can you make a video and share some knowledge on the different types available and the pros and cons plz ? Thank you. Keep up the great work.
Thanks Keny! We have been looking into sequentials for a little while, but I wouldn't say it is something we know enough to make a video on yet. As a start, they are only available for the 6MT transmissions, and what you want is one that has a new center section with a cam to shift the gears. I'd recommend looking at the Modena and PPG sequential gear sets. Kaps is another one, but I'd favor Modena and PPG over that one from what we have seen. One other thing to keep in mind is that those are all for motorsport use. These really aren't something that you would want to daily drive, and they all have service intervals where you need to tear the transmission down and inspect everything for wear. I hope that helps, and thanks again for watching!
Have you done/can you make a video on which 5 speeds came with dual cone synchros? Did the dual cone synchros appear across the whole model line at the same time? Or just in some models? Which cars came with dual cones on 1st and 2nd? Which came on 1st to 3rd? What about reverse synchro? If you had a gearbox without a reverse synchro, is it as simple as installing the synchro parts onto the end of the input shaft?
THIS WAS THE VIDEO THAT TURNED ME TO FLATIRON TUNING. ANY CHANNEL THAT EXPLAINS DIFFERENCES DOWN TO THE WASHERS. IS A CHANNEL YOU ALWAYS WANT TO STICK WITH.
Thanks very much Alejandro! Pass it on if you can. Stay Tuned!
@@FlatironsTuning always do on Facebook ;)
Great video! I have a Forester S MY00 with a TY755VN1BB transmission with a damaged viscous coupling. I found a TY752VBCAA transmission, It's a good upgrade? Any problems assembling this transmission into my Forester?
Hey man I have a 2002 WRX with a JDM 5MT code is TY754VBBAA, I can’t find anything anywhere on it but I was just wondering if maybe you would know if the front axles are the same as the USDM 5MT, thank you very much your stuff is super informative definitely subbing
howdy, i broke second gear twice in my 02 WRX several years ago. i was looking for an upgrade and purchased a legacy GT / version 6 gear set from you. 16 years later the subaru is still running strong 💪🏼 thank you 🙏🏼
That is awesome. Glad to hear that the V6 gears are still going strong! Thanks for watching!
@@FlatironsTuning any legacy gt gearbox will fit in a wrx?
Very informative video! I've got a little question though; I have a model year 2004 Blob Eye WRX with factory 5 speed and want to convert the gears to something more usable for circuit and track driving, but I also use the car quite often for commuting, so I was wondering if, for example I were to buy the RA set, would I be able to swap all the gears but 5th, as to keep the car economical, or would that mess with the shifting, and or not work?
Thanks for your question. We don't recommend using the RA gears with the stock 5th gear. This creates a big rpm difference from 4th to 5th which is not ideal, least of which for track driving. Think of this like shifting from 3rd to 5th all the time. Keep in mind that with the RA gears, 5th is the only overdriven gear, so you will actually end up using it on track where you don't typically end up there with the other gear sets. That means that if you take that gear away, and replace it with something much taller, it is very easy to end up in a situation where you don't have a good gear on any long straight. I you are concerned about the shorter RA gears on the street, I'd recommend the V6 gears. Compared to your 04 gears, they have better ratios 1-2-3, are more durable, and are still good on track. And there is no difference once you get into 5th on the highway. Hope that helps and Stay Tuned!
If i were to install moore performance blast plates to an 07 wrx 5 speed do you have any indication as to power increase reliabity figures please?
Thank you so much
Thanks for watching and Stay Tuned!
To questions. If driven normal how much can a stock 02wrx handle ... and what is in the legacy gear set kit gaskets/ seals? Synchros ?
I found an 03 STI RA 5mt with its 4.44 rear diff, looking to replace the stock 5mt in my 01 Forester. I've been looking up what parts are needed to complete the swap but I haven't had much success - do you guys have any info that could help out with this swap?
Thanks for this information. I have been looking at the 6-speed. The amount of power and torque are going to be high. Do you have any recommendations for the six speed to ensure longevity. Ive checked ppg but they want a used car fpr their sequential. Im shopping around, so if you have any recommendations. Im all ears.
Thanks for your question. From what we have seen, the stock 6-Speed is reliable up to about 500 - 600 whp. The first that will come up, if the car is launched, are the transfer gears. If you are on the high side of that number, a lot of the reliability will come from how the car is driven. I hope that helps, and Stay Tuned!
i have a question will this make my gearbox tuffer. i have a 02 wrx and am pushing around 400 whp and want to beef up my tranny.
Great video. Do you have a website with gear set pricing. I'm particularly interested in the R/A combo which you caution against with the 3:9 final. The reason being I have the EZ30/2003 WRX tran combo in an old Porsche 914. I installed the lock out spool and made it 2 wheel drive. These cars are very light and the R/A close ratio 1st-4th is appealing. Especially the more usable 1st. I don't track my car but I do put some hi way miles on it attending different events in other states so I'd like to keep the 3:9 final drive. What is your opinion in doing this on a "horse of a different color"? TIA
Thanks for your question. You certainly could use something like the RA Gears. Unfortunately they have been discontinued by Subaru, so they are going to be a little difficult to find unfortunately. If aftermarket gears are an option (they are more expensive) then the RA ratios would be an option. Thanks for watching and Stay Tuned!
I have a 2007 Forester XT 2.5 with a 5th gear ratio of 0.738. I'd like to have a "longer" 5th gear because I do a lot of highway driving. What would you suggest me to do? I was thinking of installing the 5th gear from the diesel Forester (0.634).
nice videos! would you recommend ppg gears or a sti swap for a 400 whp goal daily driver?
At this point, it is less expensive to install a 6MT, and over the long term, the STI 6MT has proven to be more reliable than a PPG built 5MT. So considering both cost and reliability, 6MT all the way!
FlatironsTuning much apprecaited! thanks!
Glad to see this, great info! Seems like the groupthink is to go 6 speed and never look back. I think the 5 speed has a few advantages if you work within it's abuse limitations.
Thanks for the comment. That is true. I honestly like the ratios of the 5-speed a bit better, and it is lighter. And lighter is better. However the 6-speed has huge advantages in terms of diffs and reliability at higher power levels. It really comes down to what you are doing with the car for sure. Thanks for watching and Stay Tuned!
@@FlatironsTuning Thanks for this awesome video! I was hoping to get some insight on the JDM gears and where I could go. I have a Bugeye WRX JDM running 260 Ib-FT tq and 250whp on a TD04 and custom tune. I have the following Gearbox (TY754VBBAA). How different is that to the USDM Bugeye Transmission? Is mine still one of the weak ones? I have a FD of 4.44 which I really like and am wanting to move my Bugeye to around 300whp and 200 Ib-Ft Tq. Which gearset would be a great upgrade that is not too expensive for my situation? Cheers
@@FlatironsTuning you can run the r180 diff w/the 5 speed mated to lgt hubs. Straight cut gears from a few different manufacturers + blast plates and you got a gearbox good for 500 bhp
Hey @flatironstuning can you share some insite on Forester XT 5 speed trany? I've heard that it's pretty bulletproof and it is a very cheap upgrade. I know it comes with cooling and 4.44 end diff
The Forester XT just has the same gears as the same year WRX. But you are correct, it does have a 4.44:1 final drive. That shorter final drive will relieve some of the driveline stress, but I wouldn't call it bulletproof. Thanks for watching!
Ok seen this video multiple times and I keep wondering about the frail 5 speed transmissions gears? Has anyone done a cryo and wpc treatment test on the components to see if there's a significant difference in strength between stock and treated? Let's say on the same engine so torque and HP is the same. Doing multiple hard pulls and basically trying to bring it to failure.
my 2004 fxt 5spd just broke 3rd... was on moderate throttle trying to pass someone. i'm surprised it lasted 2+ yrs on my 365wtq built motor, but i always knew in the back of my mind it would go eventually. I'm thinking about getting upgraded 1-4 ppg helical gears, or a 6spd sti swap.
Sure, Long term, the best solution we have seen is the STI 6-speed from a durability standpoint. And you get all the added benefits of the front and center diff that the STI trans comes with. When you factor that in, it pushes the benefits of the 6-speed way beyond trying to build up the 5MT. Hope that helps and Stay Tuned!
@@FlatironsTuning I was able to find someone selling a rare jdm forester sti 6spd swap (includes drive shaft/hubs/axels/cross members, brembos etc) that's fairly close by. I should be picking it up this week or next. I was thinking that if i built the 5spd, there's just going to be other parts that break if i start adding more power anyway.
Hi...I really love watching your videos they are so detailed...can I use a 2011 impreza transmission into a 2011 wrx?
Thanks for your question. I'm guessing you mean a non-turbo Impreza transmission? In that case, the simple answer is no. They have a different final drive, so it would not be a direct replacement. There are other things gong on that would complicate the swap, so I would recommend looking for another solution if possible. Hope that helps, and thanks for watching!
very nice infos. i have a wrx sti type r v4 with the 5 speed ra gearbox and 4.44 final drive and its really a blast to drive. at 100kmh you are at exacly 3000 rpm in 5th gear which is the same then my first car a 75hp peugeot 206. i heard that also the 3rd gear likes to fail because the gearbox starts to flex and the gears push away from each other and there are also braces to prevent that, does it help anything? also i want to upgrade my engine to a 2.1l stroker and put a different turbo on my goal is around 380 hp do you think my ra gearbox with a brace could handle that power?
Thanks for your question. I have heard that the first generation 5-speed gear boxes had a slightly more durable gear set than the second generation ones (which started in 1999). But I don't have any first hand confirmation of that. The 4.44 final drive will help you there slightly in terms of holding that power, but I'd guess that once you get to that power target, you may find that it becomes something of a limitation, especially in 5th gear. From our experience, the most reliable way to hold 350 whp or more is with a 6-speed transmission, and trying to sure up weak spots in the 5-speed transmission can eat up a budget very quickly. And there is no form of bracing that I would say is thoroughly proven. So my recommendation would be to look at doing a 6-speed swap. Hope that helps and Stay Tuned!
I really enjoy your videos and thank you! One question please: I have a 4.44 final drive in a Forester XT 2007 and on the highway I have to run above 3000 rpm. My fifth gearset ratio is 0.738. Do you know a fifth gearset with a smaller ratio available? Thanks again!
Thanks for your question Mihael. Unfortunately, there isn't a taller 5th gear that I am aware of. If you wanted to drop your rpms for the highway, you would need to either look at putting in a WRX final drive (3.9:1) or you could see about putting on slightly taller tires. Thanks for watching!
I really, really appreciate your quick reply! Thank you!
It's me again :) According to subdiesel.wordpress.com/boxer-diesel/transmission/5mt/ , the diesel 5MT boxes have a 5th gear of G/R 0.634 - do you think that would fit into a WRX 5MT? - if yes, then that would be cheaper than changing two pairs for front and rear pinion and ring gear.
Thanks for your question. My guess is that will not work in a standard 5MT box, but the only way to know for sure would be to try. The main issue I can see is that the Diesel engines are much torquier, and make power in a completely different range. As such, the stresses on the gear-box are very different, and my guess is that the design totally different to accommodate that. As a start, you can get both 5th gears and start taking measurements to see how close they are, and from there, put one in a transmission to see how it works. Thanks for watching!
Thanks for your answer! I think I will try to purchase a 5th gear pair and see if it fits. Seeing Subaru's history, they didn't change much from year to year and parts can be interchanged... I would be surprised if Subaru made different shafts only for 3 years of 5MT diesel (2007 - 2010). When I can get and fit one I will post the results.
I was making 625ish to the hubs on my 04 wrx and ran the ra set but it was a road course car almost completely i did end up going to a ppg straight cut gear set with dogs just due to plans for more power but as long as i was easy from a stop and drove with half my brain i never had too many issues...i did always have a ready spare transmission with me in the trailer lol but I feel the 5mt gets a bad rap but maybe I was just an outlier lol
Thanks for the comment. Yes, the 5MT does get a bit of a bad rap for sure, but over the long term, the 6MT is a safer bet. But you are correct, you can get the 5MT to work for a long time when driven properly. Thanks for watching and Stay Tuned!
I have a gc8 type RA. I want to change the gear ratio. Should I go ahead and beef up the 1-4th gears with ppg gears If I'm changing the ring and pinion? I'm around 400whp but going to build a ej257 for more in the next year with a gtx3076r from my s209 turbo atm
Thanks for your question. With what you are planning to do with the car, I'd say it is not worth investing more in the 5MT. You really will have more reliability, and it will most likely cost less to simply move up to a 6-speed transmission. We actually covered this problem in another video that I would recommend you take a look at: kzhead.info/sun/d7qSeNBprWt3jaM/bejne.html Thanks for watching and Stay Tuned!
I'm looking to buy my first Subaru. I like the size and comfort of the Legacy. But finding manual let alone a a 6-spd Manual is hard. My other option would be a WRX STI. How much power can the stock transmission fairly reliability. Vs upgraded gears. My personal goal is to be at less a 10th of a sec. Faster then my buddies stock 2002 50th year Corvette convertible. Just to piss him off. Any suggestions?
Thanks for your question Deron. The STI 6-Speed has proven to be reliable up to about 600 whp. The weak link is the transfer gears in the center differential FWIW. On the 5-speed, they are only reliable to about 350 whp, and less if you are launching. I hope that helps, and thanks for watching!
Great video and I'm not sure if anyone will respond to my questions but assuming an added 600rpm highway with the RA gears would probably not be a good option for longer road trips and cross country driving. Is there a way to get around the added 600rpms?
Thanks for your question. There is not a good solution. If you are concerned about this, then you would want to look at the V6 STI/LGT gears that keep the same ratios for 4th and 5th gear. Because 5th gear is by itself, you can run the RA ratios with the stock WRX 5th gear, but I would strongly recommend against that. Because 5th is the only overdriven gear in the RA set, putting that tall of a 5th gear in makes the shift from the RA 4th to WRX 5th roughly equivalent to going from 3rd into 5th in your WRX. Not to mention that if you do ever track the car, you will be missing a critical gear as you will have to get into 5th because 4th is too short (unless the track is short) and 5th will be way too high. Hope that helps and Stay Tuned!
@@FlatironsTuning thank you very much. I've haven't read much into the LGT gears but I will check them out as well.i don't track quite yet but am hoping to build something practical yet fun for spirited mountain drives.
@@billymcrae99 LGT gears are a great option. Also FWIW, as of typing this, the RA gears have been discontinued, so options are a bit more limited :-)
@@FlatironsTuning after going through my notes I realize I have been looking at the STI close ratio gear set. Are there any differences between the LGT and sti close ratio build wise? I know they have the same gear ratios.
I have a 2002 wrx with the RA spec gears. Ive had them in there for about 10 years. They are good, but you are busy when you drive, lots of shifting. And on the highway at 80mph, Im around 3500 RPMs, which I guess is ok, but it just feels like its revs too high.....a 6th gear would be great. But on back roads, its a great set up. Is it bad to take a 100+ mile highway trip with the engine reving that high for long periods?
Thanks for your question. I'd say that it isn't bad to do long road trips with the RA gears. In theory, you are increasing the wear on the engine because of the increased engine rpm, but I don't know if it would be something you could really quantify. I suppose I wouldn't worry about it unless you are spending a lot of time on the highway. Thanks for watching and Stay Tuned!
I like yours videos, but I have a question. What about 5 speed 09 WRX unit. I've heard people saying that is the strongest 5-speed gearbox and more reliable than 6-speed units. Can you please comment on that.
Thanks for your question. The gears in the 09 WRX are the same as what came in the Legacy GT from 2005 - 2009. They are definitely not anywhere near as strong as an STI 6MT. Thanks for watching and please let us know if you have any other questions!
Thank you for the info
So, alot of complaints from the 6 speed mt are it having shorter gears, which sucks for higher speeds I'm wanting to make between 500-600 whp on my 02 wrx (currently at 300) should I do the sti swap? I don't really want to because of the shorter gears but would it be the best option?
The only gear that is shorter in the STI 6-Speed is 1st gear. The added gear is on the low end, not the high end. In the USDM STI 6-speeds, 6MT 5th is the same ratio as 5MT 4th, and 6MT 6th is the same ratio as 5MT 5th. So in terms of high speed, the gear ratios aren't any different. Hope that helps and Stay Tuned!
@@FlatironsTuning Thank you!!!
I have a 2009 forester, I'm putting out 192kw at the wheels, I'd like to do injectors but worried my 5 speed manual can't handle any more power. What power would you not go over for that gearbox? I can't afford another transmission for a while.
Thanks for your question. Okay, it looks like 192 kw is roughly 258 hp. As long as you are not launching the car, you should be okay up to about 330 - 350 hp before the Subaru 5-speed really becomes a liability. So roughly 260 kw. Hope that helps, and Stay Tuned!
@@FlatironsTuning that is a massive help. Thanks
Flatirons, Im considering a 5 speed WRX that has an STI motor with 450 whp. Would you recommend the RA gear set or a 6 speed STI trans? Thank you
Thanks for your question. At that power level, the stock 6-speed will be far more reliable than anything you can do to the 5-speed. The STI 6-speed is definitely the way to go. Thanks for watching and Stay Tuned!
FlatironsTuning Actually considering an STI instead but I have heard of STI’s center diffs locking/making noise in reverse with the wheel turned. Some say its normal and some say its a damaged center diff. Any idea about those noisy diffs while turning in reverse? Thx again for all the videos, very informative
@@FlatironsTuning can I swap in the ra gear set without changing my final drive? And considering that 320-350 torque is the limit of the 5 speed transmissions, how much horsepower can a 5 speed take with moderate and conservative torque? I just want high output in horsepower but I don’t care too much for torque for the sake of longevity as I’m somewhat mechanically sympathetic
@@B.R.BGarage Thanks for your question. First, the gear ratios don't effect your final drive, so no concern there. Because torque is what causes issues for the drivetrain, that is the number that you want to pay attention to. If you can get your engine to work well at the upper rpm range, you will make more power for the same torque. Just keep in mind that horse power and torque are related. I'd recommend taking a look at our blog on the subject: www.flatironstuning.com/blog/what-is-the-difference-between-horsepower-and-torque Hope that helps and Stay Tuned!
I really need some help. So I have a 2013 wrx. I have to rebuild the transmission. But don’t wanna go 6 speed. Would any of these fit my 5 speed and if so which one would be the best option for daily driving and hard canyon driving???
Thanks for your question. The 2008 - 2014 WRX got the same gears as the Legacy GT and the V6 STI. So yes, you all ready have those gears. Unfortunately the RA gears are now discontinued. I'd say to keep driving with your transmission as it is, and if/when you have an issue, your best bet for an upgrade really is the STI 6-speed. Hope that helps and Stay Tuned!
I have a 2006 WRX dynoed at 350WHP and 450P/FT. I destroyed my 5MT (no surprise there) what’s the most cost effective replacement for this car being a daily and a couple track races a year? Thanks!
Thanks for the question Dylan. If you are making over 400 wtq, I'd definitely recommend a 6-speed swap. Fortunately, we do have a couple of videos on that subject, and we can help put together a kit for you too. kzhead.info/sun/obmDZ6lqeZprmmg/bejne.html kzhead.info/sun/qMptpMd_bHmnd40/bejne.html Hope that helps, and good luck getting your car back on the road!
did you have blastplates installed? I have some installed and I noticed the tranny is much more planted under heavy loads. I was doing 370/400 on E85, so torque came on very hard on the VF52. I am hoping it will hold 470 ft-lbs on this new turbo.
Zcypot I haven’t done anything with it, I bought a new truck and have been recently dumping money into that. The subie will have to wait till next year!
Hey , i have a 2009 wrx , i want to upgrade the transmition , im making 280whp on dyno , what would you recomend?
Thanks for your question. At this point, the best option that we have seen for higher power Subaru's is the STI 6-speed. There is not gear set for the 5-speed (PPG, etc.) that has shown to be as reliable as the factory 6-speed transmission. That is why we did the swap in our race car. I hope this helps, and thanks for watching!
Can I swap 08 WRX trans into my 07 WRX Hawk? As far as I know the LGGT doesn't have the speed sensor inside the gearbox as Wrx 02-07, but I don't know how WRX 08+ are
Thanks for your question. You are correct on the speed sensor issue. It may be easier to simply install the 08 WRX Main and Pinion shafts into your box so you don't have to deal with that. If you do have to install a transmission without a speed sensor, you would need something like the MAP VSSP to get your speed signal: www.flatironstuning.com/mapdccd-wheel-speed-sensor-signal-processor Hope that helps, and Stay Tuned!
@@FlatironsTuning yes, the problem is that I'm ineastern europe and it's harder to swap gears in. The mapdccd looks promising, thank you for that
Do you guys sell just the reverse gear for the 04 STI?
Thanks for your question. We can get most any OEM part for Subaru's. If you could e-mail us what you have, and what you need, we'll see what we can do to get your parts! flatirons-tuning@flatironsimports.com Thanks for watching!
What if they made a billet trans case. Would that help at all. Like the block case half’s. I really love the 5 speed gear ratios and by far great for every day driving.
The biggest issue is bearing support for the main shaft. Honestly, there is a possibility of putting 5-speed ratios in the STI 6-speed. That would be a better option, and more cost effective than the billet 5-speed case I'd guess. There is a little traction for this now, and I'd guess that once more people try those ratios, they may get more of a foot hold with people. Thanks for watching and Stay Tuned!
@@FlatironsTuninghow is this done ?
I have a 04 fxt. Are the diff gears 4.10? I know 1st gear is so slow. Hell im in 3rd or even 4th in town
Thanks for the question Alexander. If you have a Forester XT 5-Speed, you have a 4.44 final drive But the ratios of the gears from 1st to 5th are actually the same as the WRX from 02 - 07. Thanks for watching!
So, the RA and STI v6 gearset is most durable 5 speed gearset you sell right? The only difference in RA gearset is like shorter 5th gear? Will this hold daily 400whp ej20x without abusing it with launches?
No. The RA is a close ratio meaning your on the hwy screaming at 4-5k rpm your acceleration will be better but not a daily kinda gear set
my 5 speed is on borrowed time, I was at 450wtq lol
I have a 2011 wrx Mine isnt even close to that amount of torque and i had to get a whole new 5 speed its in the shop rn and its such a pain in the ass i shouldve switched to a 6 speed or maybe ill just sell it and cop an sti instead
@@axlmercado9561 if you plan on doing a lot of dig racing, do the swap. I dont race like that, i like doing highway pulls so its not that hard on the tranny.
My 07 is at 430wtq stock 5 speed and I have nightmares
Well you know don’t launch any Subaru. It’s the dumbest thing you can do.
Hey, I have just purchased a 2003 legacy B4 rsk gearbox with matching diff for my 1998 gc8 wrx. Is that a good upgrade?? TY754VBDAA is the code of the gearbox. Your early response will be highly appreciated.
Thanks for your question. Sure, that should be a good option for you. It looks like the gearing is taller pretty much across the ratios. Thanks for watching and Stay Tuned!
Should i keep my FXT gears or should i switch to a LGT set? how will this affect acceleration if i keep my 4.44 final drive?
Thanks for your question. If you put the LGT ratios in your Forester XT, only the 1st - 3rd ratios will change. They are slightly taller, than your stock ratios, and there will be less of an rpm drop between shifts, especially 2nd to 3rd, and 3rd to 4th. I hope that helps and Stay Tuned!
@@FlatironsTuning is it stronger compared with the wrx one?
@@Marc-gm5cm If you mean the 5-speed gears with the same rations, no there is no strength difference there. The final drive can make a difference in terms of how much stress the gears can take, but from what we have seen, if the ratios are the same, the gears are the same with the Subaru 5-speed gears. Hope that helps, and Stay Tuned!
@@FlatironsTuning thanks for the reply, I'm asking because my forester xt 2.0 turbo 5-speed is running almost double the OEM power and I know for sure the gearbox will fail at some point, I am trying to figure out if is there an alternative (besides sti 6 speed) that can handle little bit better the additional power, also I would like to see if switching to a WRX gearbox will keep my rpm lower in 6 gear as it's quite higher right now specially in the motorway ( I've already improved that a bit with taller side wall tires and 18" wheels but the revs still bit high when cruising). Years ago I had one GC8 and a WRX later and I remember the gears where longer, specially the 98 GC8 as it came with a td05 the 5th was endless!! Is the rear diff that makes the gears shorter on the forester? could I just change to a WRX one? I guess they are bolt on, forester is 4.44 vs 4.41 wrx, is that correct? To tell the truth I am doubting because yes it's little annoying to be over rev on the highway but I do love the torque it has now!! It was just to be considered in case the WRX +05 was stronger but if they are about the same it might not worth to do the swap.
What will I need to swap a sti transmission from a 06 sti into a 07 wrx
Thanks for the question. We actually have a couple of videos that go into just that. Here are links to them: kzhead.info/sun/obmDZ6lqeZprmmg/bejne.html kzhead.info/sun/qMptpMd_bHmnd40/bejne.html Hope that helps and Stay Tuned!
So I can swap an 08-14 jdm trans and differential into my 13 wrx just drop in.
So I am able to swap these lgt gear set into my 08 wrx also?? I need answers thanks
Thanks for your question Massa. Actually, from 2008 - 2014 Subaru switched the WRX to the same ratios/gears that were used in the Legacy GT, so you all ready have them. If you need to re-build your transmission, simply using parts that are correct for your car by VIN would give you these same gears.
FlatironsTuning oh wow thanks I appreciate the help a lot man god bless 🙏🏾
can these gear sets be put into eary (93-98) ty752 gearboxes ?
Thanks for your question. Unfortunately the answer is no. They changed the case slightly in 1999, and the difference is enough that these gears will not work in the older cases. There is an early version of the Type RA gears that would work in the older box, but it is much more expensive. Hope that helps and Stay Tuned!
My 08 second gear whines. Is it a straight cut gear? Or did the previous owners suck?
08 wrx premium, sorry
Thanks for your question. The only straight cut gear from the factory is reverse unfortunately. Hope that helps and Stay Tuned!
This comment is probably gonna be a cardinal sin, but if I'm looking for a WRX and planning to keep it stock as a future classic, should I be worried about any reliability issues? Even on the 5 speed gearbox. Or is it the same, don't launch it and we'll be fine?
Thanks for your question. As long as you aren't launching the car, and you are keeping the power level around stock, then the 5-speed transmission should be all right. Just use good fluid, and you should be just fine. Hope that helps and Stay Tuned!
Are all gears in the 5 speeds helical gears?
Thanks for your question. Yes, they are all helical gears. Thanks for watching and Stay Tuned!
They make blast plates for the wrx transmission to significantly stiffen it up I’m about to see how long it lasts on stock gears 544whp
Glad that you found the video, and I hope that the blast plates work out well for you! Those came up in our discussion with Dave from Rallispec, and I'd recommend going through the beginning of that video where we talk about the 5-speed transmissions as well. Here is a link to that: kzhead.info/sun/qduiZpyJm1-jqn0/bejne.html Thanks for watching and Stay Tuned!
@@FlatironsTuning Thank you! I got both blast plates on each side and, I also made a billet support bar that bolts to the whole bottom on the tranny as well. I hope my stock gears last a while before I have to get LGT gears or actually do the 6 speed swap. dyno next week! hoping it wont grenade on the dyno lol.
@@Bxrker Good luck, and let us know how it goes!
How is it holding up? Thinking about rebuilding my trans with IAG 1-4 straight cut and some blast plates (I’ll be pushing around 400-415 whp)
@@InsaneAIM Much better than expected, no issues at 267xxx km on stock 5 speed tuned at 440 ish for two entire years being a daily
Is the 2007 wrx gears thicker than the previous wrx models ?
No, there wasn't a thickness change after 2003. Thanks for watching and Stay Tuned!
What about the version 5/6 sti ?
@@ZohaibKhan-qk8vq Yes, we talk about that specifically in the video.
hey i have wrx 5speed putting down 450whp for a year now i dont do too many dig races with it but so far so gud i do replace my transmission oil every 15k miles or depending on how i use it i do i lot of role racing. my oil of i use is a castrol 85w 140 this seems to help me a lot shock proff oil gl5
Thanks for watching, and thanks for your input!
my 5 sppeed is for a 2013 wrx fully built motor with darton sleeves an tuned by eric from torque performance
what about addressing 02 wrx synchro issues?
Thanks for your question. If you are referring to the issue of getting into 1st gear, that is largely due to the single cone synchro on 1st. Starting in 2005, and for all of the LGT gears, etc., there is a dual-cone synchro on 1st, and that does help. Thanks for watching and Stay Tuned!
@@FlatironsTuning Thanks for replying!! yes, exactly what i was referring to. my 06 wrx was night and day vs my dads 02. just being curious, could any 05+ 5 speed be swapped into an 02 without much hassle??
@@neo8378 Unfortunately no. There is actually a fair amount of parts that need to be changed to put that synchro into an 02-03 box specifically. If you are looking to do this, I would recommend looking at doing the LGT gear set. The 1st gear has to be able to accept the dual-cone synchro as a start. www.flatironstuning.com/2005-2008-legacy-gt-gear-sets Hope that helps!
@@FlatironsTuning gotcha, to clarify, what about swapping a complete 05+ 5 speed box onto an 02 engine though?
@@neo8378 you would have to swap all of the internal components from the 05 box into the 02 box. Not just the gears. It would be better to just install the 05 box in to the 02 WRX.
are the forester xt 5 speeds from 2004-2007 i believe, similar to the LGT 5 speed gears?
Thanks for the question Jeff. Actually, the Forester gears are the same ratios as the WRX through those years, but they have a 4.44:1 final drive. The later FXT (06-08) may have gotten the LGT ratios, but I don't they did. I'll have to check.
Would this Essentially affect any of your top speed thanks for ur time
Thanks for your question. You would want to look at the 5th gear ratios in this case. The only one that is different are the RA gears. In that case, it would reduce your top speed. Hope that helps, and Stay Tuned!
Unfortunately legacy gt gears do not fit in the earlier transmissions. The gears are too thick and wheen applied to the main and secondary shafts they are too long and the case wont fit.
These gears can be installed into the WRX transmission back to 2002 actually. In those cases, other parts are needed to get them to fit properly because of the difference in width. Thanks for watching and Stay Tuned!
@@FlatironsTuning Can you elaborate on what other parts? I have an 09 trans as a donor for my 02 WRX. From what I've looked at, I need to retain the 02 front diff and tail housing. I suspect I need to swap the shaft in order to drive the speedo. Is there any reason to use on case over the other and is there anything else I need to swap or change?
@@akivapilot Thanks for your question. There are a number of different parts needed depending on the year of the transmission these gears are going into. We don't share that list, but those parts are what are included in the install kit for each year on our web-site: www.flatironstuning.com/2005-2008-legacy-gt-gear-sets Thanks for watching and Stay Tuned!
@@FlatironsTuning thanks for the reply and the great videos. I'll save the link for when I'm ready to swap the gears.
How much is this kit? my 1st gear I think is going out
Thanks for your question Adan. Here are links to them on our web-site: www.flatironstuning.com/p-1686-2005-2008-legacy-gt-1st-4th-gear-set.aspx www.flatironstuning.com/p-618-sti-ra-close-ratio-gearsets.aspx www.flatironstuning.com/p-619-sti-standard-ratio-gearset.aspx Now, one thing I will say is that when gears fail, it is almost always immediate. Meaning that once you sheer teeth off a gear, it will very quickly take most of the other teeth off, and you no longer have that gear. So I would recommend starting with a good diagnosis of the issue you are having and go from there. Thank you, and please feel free to contact us if you have any more questions.
Fuckin banger subie info vids
Thanks for watching. Stay Tuned!