does anyone know the symthoms of when differential pins break....bob

 

Well if the pin doesn't slip out far enough to snag on an edge of the tranny case and grenade the case, it will a lot of times gradually slide out and wear groove in the case until it breeaks through and you start losing tranny fluid. In the second case there is a usually a lot of metal filings that get swept through and can cause the solenoid pack to fail or even plug the filter. Limp mode will often be a precursor to total failure. Needless to say if it breaks a rebuild is usually in order, but now they have clips called "CASE SAVERS" to prevent it from working out. I've actually welded mine in a few times before i knew of the case savers.

 

will that cause a high pitch whine? when put into reverseit hasno movement.just a grinding type whine= i can hear something spinning...also when i put it into drive it will move a few feet make a loud clunking sound =then it moves a few feet as if it was in 3rd gear then stops== i drove the van 14 miles to work on monday with no symthoms of anything wrong=went to park it =put it in reverse and it wouldnt move = so tried to pull it off the road
but it wouldnt move...so i had it pushed into a parking spot