This mod (and the moonhawk it's suspension is based on) have this tendency because the suspension has a lot of roll steer. Once it rolls a bit, the rear axle steers outward causing it to roll even more. It could actually twist either way very easily. Once I added the driveshaft torque I had to redo the geometry on the moonhawk because it launched so badly would land on its roof half the time The more realistic forces we add there, the more spot on the suspension geometry has to be. The reactions will not change mods behavior unless they are using official content for the transaxle/driveshaft/differential (depends on the vehicle). So for example, a modded engine will see the new driveshaft torque reactions, but a modded differential won't. Standalone mods will be unchanged.