well some of you may know my diferential let loose over thanksgiving. i had a spec stage 1 and a torsen installed. well they said the old synchros looked good and they were to be reinstalled, flashback to today, i now have grinding in all forward gears, not always but still grinding. so this sunday my car is goin back to Michigan to be reserviced. i need to know the part numbers for the 1-2, 3-4, 5-R synchros. any other suggestions on things to replace? thank you, i have to get back to class because my house doesnt have internet yet.