the problem i am having is that it seem that at slow speed while i am turning the back tires seems to lock up them release with a cloncking noise. i dont know if my diff gear is going out or if the drive shaft is binding up or if its something else. i have a 4" lift and the rear drve shaft has been extended and i did drop the trans and transfer case by taking the spacer that was underneath the crossmemmber to in between the frame and crossmember. i don't know if this did it or what! if someone has any ideal what could be happening to my k5 please let me know thank you.