Also, if you source a Z3 diff, it's gonna have Z3 output flanges which might have a different bolt pattern than e30 output flanges. Depending on length, you may or may not be able to use Z3 halfshafts. Otherwise, you'll need to run 6cyl e30 flanges and e30 halfshafts. I don't have much knowledge about Z3 halfshafts, but I'd imagine that they probably have larger ABS tone rings like the e30 halfshafts, so as Russ mentioned, you'll likely need to shim your ABS sensors. |