Chevy & GMC Vans

I was going over some rocks on the weekend, had one rear wheel in the air, and it just spun. No AWD activation, no posi activation. No dummy light on the dash either.

The onIy clue is I heard some pretty aweful noises coming from the drivetrain a couple of times while off-roading this year. Looks like I need to start pulling stuff apart. ](*,)

Oh crap! #-o

Time for a proper transfer case and a Detroit air locker in the rear. Man I'm good at spending other people's money.