Originally Posted by scoostraw
I'm bumping this old thread because I just bought a 2001 4cyl automatic PreRunner with the TRD package. The guy I got it from is a mechanic and he said for sure it has the locker.
However there is no button, no sticker on the door jam etc. How can I tell for sure if I have it? (Without checking the capacity of the rear end fluid?)
If you are positive there is not a button for the locker, the only other thing it could be is an auto locker, which is after market and not from Toyota. If you have an auto 4cyl then your diff gear is 4.56, which does not come in the e locker rear axle, as I have heard because it is too big. So I believe you got le screwed on that one, because I can almost guarantee you have no factory locker.