Originally Posted by
MasterSbilt_Racer
Aside from moving it backwards or forward, or shock adjustment, most any other adjustment is a bad idea, IMO
All the 5th coil is attempting to do is smooth out the shocks the tires see from anything that causes tire load to change or tire speed to change. It's a complicated spring and mass oscillating system. You can remove traction by tuning it poorly, but it doesn't make traction. Any load the rear gains from compression of that spring is equal to load removal from the springs at the 4 wheels. It's essentially redistributing the total load of the cars weight.