auburn locking diff.
So about 2 years ago i blow up my rear end and had, what i was told, a "bulletproof" diff and 31 spine strange axles installed, i had it professionally built but i installed it with my friends. Lately at lower speeds while turning there is alot of popping. I was told thats normal which i understand the idea behind a diff. But why did it only start doing this 2 years later??