Steffen A Posted December 26, 2016 Share Posted December 26, 2016 Hey guys. I need help to find out what type of diff that is in my Supra. I've taken down the diff case to change the side seal, since it is leaking oil. Also i want to change the diff oil as a part of servicing the whole car before summer. But i want to know if it's just the OEM Torsen LSD or if it's an aftermarket diff, which may need a special sort of oil? When the car was bought at the Japan auction, it was typed in the spec list, that it had an "aftermarket diff". So that's why i'm concerned if it is the OEM or really is any aftermarket? Cause i found out, that the "aftermarket clutch" it also should've had, is just an OEM Toyota clutch. So i wonder if the diff is also just the factory one? The car is from factory with "B03B" differential. 8.7'' - 220mm, 3.267:1, B (Torsen LSD). The current diff has these numbers on it (cannot find anything from them on Google): - 0031-3601695 - 34-0530 Thanks in advance! Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted December 26, 2016 Share Posted December 26, 2016 That's just a factory torsen diff Quote Link to comment Share on other sites More sharing options...
Steffen A Posted December 26, 2016 Author Share Posted December 26, 2016 That's just a factory torsen diff Cool thanks a lot! Is it correct, that amongst all the OEM diff's on the JZA80, this is the strong one? Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted December 26, 2016 Share Posted December 26, 2016 You have two types of Supra diffs. Small (A0xx) and Big case (B0xx) Yours is a big case diff, and will be more resilient to some abuse compared to a small case diff. You also have a low diff ratio that no small case diff can have. Quote Link to comment Share on other sites More sharing options...
bignum Posted December 26, 2016 Share Posted December 26, 2016 Some of the facelift v161 had 3.26 and small case. Quote Link to comment Share on other sites More sharing options...
Neumann Posted December 26, 2016 Share Posted December 26, 2016 (edited) You have two types of Supra diffs. Small (A0xx) and Big case (B0xx) Yours is a big case diff, and will be more resilient to some abuse compared to a small case diff. You also have a low diff ratio that no small case diff can have. Every manual facilft car 1996/5> have the 3.266 ratio. Doesent matter if it is the facelift with gte + v160 or gte vvti + v161. Diff code a03b. The tt autos have 3.766. Diff code a02b Edited December 26, 2016 by Neumann (see edit history) Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted December 26, 2016 Share Posted December 26, 2016 Some of the facelift v161 had 3.26 and small case. Yep you are correct Quote Link to comment Share on other sites More sharing options...
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