aa8jzdial Posted September 7, 2009 Share Posted September 7, 2009 2000 Forrester , awd-manual, making very unpleasant noises during throttle down. Checked diff. oil and found telltale flakes on the dip stick. One of the great things about Subes is the parts interchangeblility. I have no experience with this problem though. What should I look for while searching for a used tranny, differential? I need to match the front diff ratio with the rear? How can I tell which is which? What is a good price for used tranny/diff? rick w mi Link to comment Share on other sites More sharing options...
johnceggleston Posted September 8, 2009 Share Posted September 8, 2009 if it is is a manual trans from a 2.5Lengine car, it is a 4.11 final drive. final drives from 2.2L manual cars were 3.9. you can't go wrong if you stick to 2.5L trans close to your year. Link to comment Share on other sites More sharing options...
edrach Posted September 8, 2009 Share Posted September 8, 2009 (edited) I have to disagree with the previous poster since Fuji seemed to select 3.900 vs. 4.111 almost at random regardless of engine version. Check the transmission chart in the USRM against the TY number located on the bell housing (near the starter) or on the fender mounted VIN plate to determine which transmission you need. However, for a Forester 4.111 is correct for all the 5MT transmissions. As to cost, it's a crapshoot. I've paid $500 for a '99 Forester transmission which turned out not to be very good and as little as $100 for a number of "selected" transmissions at Pull a Part. Selected since I found low mileage unit in cars that were obviously running when they were hit. I suspect a decent "rebuilt" can be gotten for under $1000. My experience has been you can usually skip a number of years in either direction as long as you watch the "push" or "pull" clutch option and the final drive ratio. If you change the rear diff to match a 3.900 transmission you can do that also, but you'll take a hit on performance. By the way, before you swap out the transmission, drain and re-fill with a low cost 75W-90 gear oil and see what comes out. Small flakes shouldn't be an issue unless there are lots of them. Then drain and re-fill again with a quality 75W-90 gear oil. Edited September 8, 2009 by edrach Link to comment Share on other sites More sharing options...
1-3-2-4 Posted September 8, 2009 Share Posted September 8, 2009 I thought all gear oil is the same? Link to comment Share on other sites More sharing options...
idosubaru Posted September 8, 2009 Share Posted September 8, 2009 I thought all gear oil is the same?it's like anything else there are off-brands, name brands, dino oil, synthetic, etc. Link to comment Share on other sites More sharing options...
1-3-2-4 Posted September 8, 2009 Share Posted September 8, 2009 it's like anything else there are off-brands, name brands, dino oil, synthetic, etc. I used costal gear oil because it seemed Advance auto never had any of the other higher brand I used to use. Link to comment Share on other sites More sharing options...
edrach Posted September 8, 2009 Share Posted September 8, 2009 I'm partial to the Redline and Castrol Syntec synthetics. I do not llike the Lucas gearoil. Link to comment Share on other sites More sharing options...
idosubaru Posted September 8, 2009 Share Posted September 8, 2009 The Advanced Auto Parts around me all have Synthetic Valvoline gear oil, i've seen the Coastal stuff too that you're talking about. Link to comment Share on other sites More sharing options...
1-3-2-4 Posted September 8, 2009 Share Posted September 8, 2009 The Advanced Auto Parts around me all have Synthetic Valvoline gear oil, i've seen the Coastal stuff too that you're talking about. I never pick up synthetic because I hear they don't do well in a Subaru? Link to comment Share on other sites More sharing options...
aa8jzdial Posted September 11, 2009 Author Share Posted September 11, 2009 Thanks for the help guys and sorry for the late followup. The original motor was a 2.5. The number from the tag on the fender well is TY755VC1AA. 1) Is this likely a 4.11 ratio? 2) If I am looking at Legacy transmissions will they have a number other then TY755VC1AA and still work? 2a) In other words does the same tranny have different #s if used in different vehicles? 3) Legacy/Forester transmission from what year to year will work? 4) If I haven't already, I now expose my ignorance. What is USRM? tnx rick w mi Link to comment Share on other sites More sharing options...
johnceggleston Posted September 11, 2009 Share Posted September 11, 2009 (edited) The original motor was a 2.5. '00 forester. The number from the tag on the fender well is TY755VC1AA. 1) Is this likely a 4.11 ratio? yes 2) If I am looking at Legacy transmissions will they have a number other then TY755VC1AA and still work? yes, but the trans type needs to match though, the TY755...... typically the last few charactures generally refer to the car it came from, outback vs. forester and maybe the final drive??. if you use a trans from a different model car the speedo may be off after the swap. (the speedo drive gears match the trans and stock tires. in the late 90s in the legacy GT line you could have 4.44 differential (outback) with legacy size tires. this may not be an issue with '00 - '04 cars) 2a) In other words does the same tranny have different #s if used in different vehicles? yes, but you have to match the final drive ratio. if manuals are like autos, all trans with TY755.... are the same except maybe the final drive ratio. if like autos, the 7th characture dictates the final drive ratio. i have no idea if this is the same for manual trans. once you find a trans you think will work, research the rear diff of each car and see if the part numbers are the same. 3) Legacy/Forester transmission from what year to year will work? The original motor was a 2.5. The number from the tag on the fender well is TY755VC1AA. research here: http://opposedforces.com/parts 4) If I haven't already, I now expose my ignorance. What is USRM? ultimate subaru repair manual, there is a thread full of repair tips, pics and other helpfull stuff. just like the is a thread that specializes in old gen stuff or new gen stuff. and often it's a sticky, meaning it's always stuck at the top of the list. i just read a thread today about 2.5 engines and what year each model subaru went to the phase 2 engine. the phase 2? trans (TY755...) is similar when you ask about trans part numbers. some changed one year and some changed the next. but you only have a couple of things to worry about, final drive ratio and clutch type. but since, i think, all subaru went hydraulic in the late 90s, that may not be an issue. at some point they change the number of bell housing bolts but all TY755Y... are the same in that regard. i think TY755.... is after that change. corrections welcome. . Edited September 11, 2009 by johnceggleston Link to comment Share on other sites More sharing options...
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