1987 RAM 150 rear differential
My rear differential is slipping and I don't know if it
takes gear oil or trans fluid, and or what would be
the best to use.
should use gl4 , but if it slipping than the clutches are worn out.rebuild time.
It sounds like it's grinding and then the rear end starts shaking roughly
If it is truly "slipping," you need a complete rebuild or just a replacement axle from a "recycler" (junkyard).