Lets dicuss our wheel rates....
"Figure 1 shows the relevant parameters involved in calculating the wheel rate based on knowledge of the spring rate. Wheel rates are useful to know as they make it possible to compare rates between chassis' with differing suspension layouts. Wheel rate is also nice in that it gives one a better feel for the front to rear rates on a single car when the two axles have differing motion ratios (L1/L2, see below). It might be helpful to think of wheel rate as the effective spring rate when the spring is actually installed onto the car. "
Wheel Rate = F2/dw = k1(L1/L2)²
Wheel Rate = Spring Rate x (Motion Ratio)²