I'm about to pull the trigger on the LSD offered by Traction Concepts. http://www.ebay.com/itm/Suzuki-Carr...ash=item3aa251c8ae:g:wcYAAOSw3YNXcVJk&vxp=mtr My new truck does not have a locking rear differential so this should help when in the field. I was contemplating just welding the rear up. However, I'm uncertain at the abuse the axle can take and how readily available another would be.
I installed one on my 1992 DD51t. I mostly drive with it on pavement and I have no binding issues while taking tight turns. The LSD works great off road on an unladen truck, I suspect it's weakness will be with a full load; if there is significant weight on one wheel with traction, the other wheel can overcome the LSD and spin. But that is just a theory, so far it has only inspired confidence when I'm off road.
I'm pretty sure being a limited slip, it's designed not to bind on pavement, as to aggressive driving, off road! Now if you get crazy on pavement, with hard turns at higher speeds, you will encounter some slippage! They work well for their design! Good Luck with it! Limestone