Just a note that may or may not help someone in the future. My 93 RR LWB would not work in 4 wheel drive. I was getting stuck in 2" of snow while minivans drove circles around me!!! The traction control and abs lights came on so I figured it was electrical. As raid13 suggested I had a snapped axle right next to the front right cv joint, which eventually took that out as well. Hope this might help someone. Thanks raid!