Zac88 Posted September 10, 2020 Share Posted September 10, 2020 Sourced a JDM transmission for my 05 lgt, going to attempt to swap it at home in my garage, is there any write ups or advice I can get? Also is there anything I can do in there in the mean time in terms or maintenance? Thanks! Link to comment Share on other sites More sharing options...
Zac88 Posted September 10, 2020 Author Share Posted September 10, 2020 Sorry forgot to mention its a manual, clutch is still going strong, only about 80k on it. Link to comment Share on other sites More sharing options...
Max Capacity Posted September 10, 2020 Share Posted September 10, 2020 IMO at 80k that will not last much longer. Might as well replace it while the trannys out. Here's the gear ratios, https://legacygt.com/forums/showthread.php/transmission-gear-ratios-and-final-drives-229267.html Make sure things match up. I thought someone said the other day the 5mt's are not that expensive... 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Infosecdad Posted September 10, 2020 Share Posted September 10, 2020 (edited) I would agree, if you are pulling the tranny; do the clutch as well. As Max said, need to match your JDM tranny against that lookup tables to make sure the final drive ratio matches yours. If not you need a different differential (or tranny). You haven't mentioned why you are replacing your current one. Edit: also realized you didn't say whether the JDM tranny was 5sp or 6sp... Edited September 10, 2020 by Infosecdad Link to comment Share on other sites More sharing options...
subisubisu Posted September 10, 2020 Share Posted September 10, 2020 (edited) I'm currently doing a Spec B 6MT swap into an 05 OBXT. That's a lot more involved - 6MT needs the R180 diff, hence its own driveshaft to fit the changed distance between transmission and differential, and different axles to fit the splines on the different diff. I bought a kit that contained a bunch of Spec B suspension parts and the wheel hubs and brakes, so I have changed out a LOT. There's good info in the several 6MT swap (search term!) threads here, some of which is sure to be useful even if you don't go 6MT. I am also a heavy user of the shop manuals. All I lack is getting the dual-mass flywheel off - &$#% TP50 bolts! - to install new flywheel, clutch plates and mate up the 6MT. I'm sure it will go exactly that smoothly. ETA - Oh yes - the clutch that came with the car, that I'm pulling out, is a push-type. The clutch for the Spec B 6MT is pull-type. If you're changing manual transmissions, be sure to know what old and new types you have. Edited September 10, 2020 by subisubisu Link to comment Share on other sites More sharing options...
Zac88 Posted September 10, 2020 Author Share Posted September 10, 2020 Center diff is broken on mine, its a JDM 5spd with 4.11 ratio. Thanks Max, ill confirm part numbers on that site. Link to comment Share on other sites More sharing options...
chato Posted September 11, 2020 Share Posted September 11, 2020 yeah, did a 6mt about a year ago. definitely, definitely replace the clutch. good fluid, there's plenty of opinions on which. check the condition of your clutch master and hose inspect boots on CV's before you get it apart get new seals for the CV outputs consider doing the group N mount pb blast things the night before Link to comment Share on other sites More sharing options...
chato Posted September 11, 2020 Share Posted September 11, 2020 also did one of the JDM 5 speeds it was identical to the US 5MT Link to comment Share on other sites More sharing options...
Zac88 Posted September 11, 2020 Author Share Posted September 11, 2020 So what all needs to come off in order to take out the transmission? Link to comment Share on other sites More sharing options...
awfulwaffle Posted September 11, 2020 Share Posted September 11, 2020 Axles, driveshaft, starter, pitch stop and that's it. Disconnect the shift linkage from the trans, and all the electrical connectors. Bring a good chisel and hammer to separate the trans from the block if it's stuck. I've also found that heating the trans housing around the dowel pins with a torch will help it pop loose sometimes. Link to comment Share on other sites More sharing options...
chato Posted September 11, 2020 Share Posted September 11, 2020 I took off the downpipe as well Link to comment Share on other sites More sharing options...
awfulwaffle Posted September 11, 2020 Share Posted September 11, 2020 ^^derp yeah, that too Link to comment Share on other sites More sharing options...
Max Capacity Posted September 11, 2020 Share Posted September 11, 2020 The guys at the tranny shop did mine without removing the DP. Popped the lower ball joints and just slide the axles out as the tranny was moving. That's how the dealership does it too. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
lagwagon Posted September 11, 2020 Share Posted September 11, 2020 Watching your videos, I think you probably can do the swap but without a lift it is probably going to be pretty hard. Have you thought about doing it at U-Wrench? If you are not already, connect with the Calgary Subaru Club on FB or Western Subaru Club and ask around if anybody can give you some tips if you get stuck on anything, or can come give you hand if something is a two person op. Link to comment Share on other sites More sharing options...
chato Posted September 11, 2020 Share Posted September 11, 2020 I did it on 4 heavy duty stands backed up by two jacks, but didn't love the feeling of being under that. Max- was that a full removal or just a pullback for clutch? While it *is* possible to take off a transmission without removing the DP but its way easier with it off, not just to remove the transmission, but also to access one of the trans bolts which is tucked behind the DP. so for 8 bolts removed on the DP you get a lot of headache and time saved IMHO. You can also check on your turbo health as a bonus. Link to comment Share on other sites More sharing options...
Max Capacity Posted September 11, 2020 Share Posted September 11, 2020 (edited) Full removal. Car sat on the lift for 2 weeks while the 5mt parts came in. Worn shift forks, caused the tranny to lock up in between 3rd,4th I had the wagon sitting on the big jackstands for months back in 2011 when I had the tranny out and replaced the rear diff. Thats when I learned to make sure you don't know the TOB Fork off the pivot ball when putting the tranny in. Had to pull it back out because it wouldn't shift after a rebuild. Only to find out the fork dropped down off the ball. I also had to pull the rear diff after putting it in. Bought it used, 35,000 miles on it, PO had buried the fill plug. couldn't remove it to fill it. Had to replace the rear cover. Edited September 11, 2020 by Max Capacity 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
MarcLgtSTI Posted September 16, 2020 Share Posted September 16, 2020 If you wanna save some cash I have a Clutchmasters FX300 and Steel LWFW for sale. Has about 15k miles and the disc has a ton of life. I'll let both go cheap! comes with a new TOB as well. I paid 1k for this set up.. Perfect for daily Link to comment Share on other sites More sharing options...
Zac88 Posted September 25, 2020 Author Share Posted September 25, 2020 Thanks for all the tips guys! I was going to wait until next year but my oil seperator plate is leaking badly so I will be replacing that as well. Going with ACT HDSS and OEM SMFW Link to comment Share on other sites More sharing options...
boxkita Posted September 25, 2020 Share Posted September 25, 2020 having a second person helps as transmission isn't light when lifting into place. I did it on four of HF's big jacks to get as much clearance as possible. The second time on a lift. The transmission lift only went up a foot, so the lift experience involved alot more cussing. Build my car Boxkita Track days Link to comment Share on other sites More sharing options...
chato Posted September 25, 2020 Share Posted September 25, 2020 I did mine solo but with a cherry picker holding from the top and transmission jack below. Link to comment Share on other sites More sharing options...
Zac88 Posted September 25, 2020 Author Share Posted September 25, 2020 I have a couple of Jacks and a small wooden pallet, goign to try that! Link to comment Share on other sites More sharing options...
Max Capacity Posted September 25, 2020 Share Posted September 25, 2020 The harbor fright tranny jack is nice to have. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
BoozeRS05 Posted September 26, 2020 Share Posted September 26, 2020 Yeah a good trans jack is a must have, look forward to buying one when I get there. I feel like anyone can get a good used LGT 5mt for like $500 these days, and local to you if you look hard enough. EB's Subaru journal - 2005 LegacyGT Wagon & 2014 Forester FB25 (2008 specB - RIP) IG@legacygtliving Link to comment Share on other sites More sharing options...
boxkita Posted September 26, 2020 Share Posted September 26, 2020 a trans jack is so much easier than trying to one-armed bench press a transmission and use a wrench in the other Build my car Boxkita Track days Link to comment Share on other sites More sharing options...
Zac88 Posted October 12, 2020 Author Share Posted October 12, 2020 going to start the job today, ended up buying a transmission adapter for my floor jack and some 6ton jack stands just to keep things a bit safer. Link to comment Share on other sites More sharing options...
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