i have a 90 sc 35th and the door code says 8 and that means 2.73 right?then another place said all automatics from 89-93 had 3.27.My car is a auto-but is this correct.please let me know
That's really unusual. If your code is correct, that means that your car came with an open diff 2.73 rear end. I'd check the tag on the rear diff cover to see what it says.