Report "The truck runs and idles fine at start up it will move forward in all the drive gears but it seems like there is a slight drag. when i put the truck in reverse it engages and rolls about two feet and just locks up. when you push the gas it will not move. i lifted the rear axle and it spins freely in neutral. it is a 94 k1500 4x4 4l60e trans just instaled less than 100 miles ago 350 engine"