A buddy of mine has a mildly bombed 2002 Dodge Cummins with an aluminum flat bed on the back of it. It get really squirly in the back end when it's wet out, especially while running up hill and trying to accelerate. The truck does see some tow duty, usually between 7-10K depending on what rig we are hauling. Anyone running some sort of locker for their 80? I am trying to talk him out of a clutched type, but really don't know what out there for the 80 rear end. He was talking ARB because of the ability to turn it off. When I told him you had to be stopped or close to stopped for it to engage, it kinda put him off. Any suggestions would be great. Thanks!