I lost 4wd after the rear end blew (Had to use 4wd to move) Anyways, the rear end is fixed, and I jacked it up on all 4's to see whats going on. With out the truck running, I can turn the driver side hub freely. Its the stock auto hub, which I think its just not engaging because its a POS. The passenger side is a Warn manual hub. In lock it will some times engage, and sometimes not. (As in I will turn the wheel, and sometimes the driveshaft will spin) Then with the truck running in gear, in 4lo and 4hi, all you can hear is the passenger side hub making a clicking noise?