Bad news about the diff. Apparently the June 91+ builds are different from the older. Im not sure what changed but Cusco shows a different application (might be output shaft?). Im going to go ahead and weld my 90 and hope that the tranny I have in the car currently has the same setup. Hopefully Ill have a little bit better idea after I pull the old 90 tranny apart.
My current tranny is a 90 with upgraded 94 internals (94 internals using all the superceded parts) except for output shaft. Not sure how thats going to effect the swap but Ill know for sure in a couple weeks.
BTW did you ever get your turbine exhaust outlet flange from RRE so you could get the O2 eliminator built?
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John
90 Talon TSi AWD
2KW K4U