88Sierra

Hey folks,

I've got an 88' GMC Sierra and I've acquired a 1995 Nv3500 that I'm currently rebuilding, and I was wondering if any of you had an experience with analyzing the wear characteristics of dog teeth on a gear. I've determined that the dog teeth on the reverse gear are too worn and need replacing, but I'm unsure about 1st, 2nd and 5th gear. They show some wear, and there appears to have some material taken off, but it's not excessive. The synchros associated with these gears were worn down(I'm replacing them), which I think is why the dog teeth show some wear. I've included some links so you can check out a few videos I've made of the dog teeth wear.




This is my first attempt rebuilding transmission, so pardon my basic questions. Thanks!