Triple watts link?

[exwestracer]

Norm is right on the money. Many dirt cars run a torque arm (just like 3rd gen Camaros) that has vertical springs to independently control acceleration and braking axle torque. These are usually referred to as fifth and sixth coil systems.

Since dirt tracks have much lower traction potential than dry asphalt, it's necessary to allow a LOT of pinion wrap to keep the tires reasonably hooked up. I has been proven time and again that there's no need for this much pinion monkey motion on the street, although the basic idea may be useful to a lesser extent.