Originally Posted by maxc86
ok, thank you for answer
No over sized tire.
so when i make a tight turn, I hear my rear inside (from direction of turn) wheel slipping on ground.
And when i switch to 4x4 HI, if i try to turn on dry road it's feel like the front wheel screech on pavement. On slippy road the rear wheel will push the truck straight foward
I drive Ford pickup at ma job and never feel that before on rwd, very strange to me.
um... 1st things first don't use 4WD on a dry high traction surface, you can break shit... Tires always slip while turning in 4wd. It's just how our 4wd systems work on these rigs.
It is having this problem in 2wd too right? Sounds like you may have a auto locking type locker in there possibly, that is stuck locked. If you can, while in 2wd get both back tires in the air with some jack stands (Be sure to block the front tires or the truck can start to roll!!!). Leave it in park and try turning one of the tires. The other tire should go in the opposite direction. If it doesn't move then your rig is locked. If it does, then either you aren't locked or the locker is currently unlocked. Could be really hard to tell if you have a locker or not after that without just dropping the diff... Another way to check that might be easier, is to just get one rear tire in the air (again block the front tires) and put the tranny in neutral. You should be able to freely spin that tire now and the driveshaft should spin with it, while the other tire doesn't move.