Very few rears are high pinion (the teeth would be running on the coast side of the ring and more prone to wear because the pinion would be pushed away.) There are NO high pinion Model 20s. (not even the ones on the early Humvees) After '89, the fronts started going more to high pinion. Reverse rotation only happens when you take an axle from the back and put it in front!


Build your truck the head men say, but it must be built in such a way...