Rear diff oil change/check

33IMP said
There IS a small chance that it is a cone sure grip, with completely wasted cones.... but that's maybe 1%. And that one percent is usually the guy asking..... "I've got a posi, how come only one tire spins?"

Awww man lol I hope im not that 1% , I was trying to find out in the past post if I had posi or not , so this come you speak about how would I tell ?