NorthWet Posted July 24, 2005 Share Posted July 24, 2005 Well, it is not mine and that is the rub. Coworker, about to spend a small fortune on a used diff that they think that they need. I can't check for the diff tag (not near where I am), and owner says that he can't see one. Local JY says that the only diff they could locate was in Portland, 180 miles away!!! And they want $160!!!! Car is a 93 Impreza sedan with automatic. From what I have determined from searching, it should be a 3.90. Is it really the dirt-common 3.90, or a 4.11, or a something else? Thanks in advance. Pat Link to comment Share on other sites More sharing options...
blackbart Posted July 25, 2005 Share Posted July 25, 2005 Drain the oil, remove the back cover, count the teeth on the ring gear, if it has 39 teeth it is a 3.90, if it has 41 teeth it is a 4.11. I have both and can ship. Link to comment Share on other sites More sharing options...
NorthWet Posted July 25, 2005 Author Share Posted July 25, 2005 blackbart said: Drain the oil, remove the back cover, count the teeth on the ring gear, if it has 39 teeth it is a 3.90, if it has 41 teeth it is a 4.11.... Northwet said: I can't check ... (not near where I am), Nice try! And rather than count teeth, I could just look at the number stamped on the ring gear... ... but again, not near where I am. Link to comment Share on other sites More sharing options...
simbey1982 Posted July 26, 2005 Share Posted July 26, 2005 The chart i have says the manuals were 4.11 http://www.rallispec.com/Transmission%20chart.htm So it would make sense that the auto was 3.9......though when looking up the part numbers it says they are for both AT & MT so its probabally 4.11....my buddy has a used 4.11 he may sell if your interested...Portland also though http://www.subaruparts.com/diag/?model=5&year=1993&style=RS&body=&scn=1&category=195-1 Link to comment Share on other sites More sharing options...
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