The pinion snubber converts torque to a downward motion of the axle, which plants the tires. Short shocks won't allow full drop out of the axle..stopping it abruptly just as the weight of the car begins to transfer rearward.
Yes, well I got the impression this ยด72 Scamp is a street car, and as such the SS Springs are not working at their full potential Since in order to transfer the to torque and lift the body, you need a good bite.