Well... As far as I know, I am the only person who has ever actually done this mod. I put a detent in the rail on my 2.6 turbo setup and ran it that way before I upgraded to a 4.3. It worked fine, BUT it does NOT unlock the front from the read driveshaft. It only uncouples the transmission from the transfer case.

It'd prob be OK because the rear wheels would not be driving anything in the auto trans and the front hubs would be unlocked. The biggest danger is turning the auto trans with no lubrication from it's engine driven pump.


I flat tow my diesel rig with the hubs unlocked, and the rear shaft pulled, and ratchet strapped up to the exhaust system. Takes just a few mins with a 12, and 10 mm wrench. Way Way easy to do.