Bad Hub(s)?

[Shaffer4]

My truck's front axle (D44) stopped engaging today in either high or low range. The drive shaft spins, but it is putting nothing to the ground at either wheel in gravel, nadda. It is supposed to be a Detroit Locker in the front (and rear, according to the P/O) and all tires were spinning when in 4-wheel previous to this. There is no noise or grinding and I can feel the Transfer case hitting the detents when engaging it. It has Warn Locking Hubs.

We were using it today to move a non running car around our yard, it was working fine until we were trying to "Parallel Pull" the car over the curb (chain from my front hooks, across to the front frame of the car and pull it along side the truck). I had put it into 4 low to drive up into the slush beside the car and it was working then. But once we got to pulling the car forward (was working and would have if the 4WD stayed working... as odd as it sounds) the front stopped turning and I didn't hear or feel anything break free.

Being fairly inexperienced I bring forth my Delema to the 4 Wheeling Gods.