Does GM Autotrac always come with automatic locking rear differential? How do I know if I have a locking rear differential?
GM autotrac
Dec 12, 2005
4 Replies
Didn't you post this question a couple of times the other day Tom - or was it someone else? No matter - there were a couple of answers posted over the past two days or so.
yes but I dont see any replies
Jack up rear wheels(both). Put in neutral w/emer. brake off. Have someone hold one rear wheel still while you try to spin the opposite one. If it spins ok, it's unlocked; if it is extremely difficult to turn, or will not turn, it is locked.
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