Linear springs: These are considered an entry level spring, commonly used in the stock Jeep suspension. They have a single spring rate. Although linear springs provide a consistent level of compression in average conditions, they are prone to fading and sagging over time and excessive use.

Progressive springs: Progressive springs have a softer firm rate that gradually increases throughout the length of the spring. Progressive springs are designed to provide a softer ride during slower speeds and a firm ride during higher speeds or tighter cornering because the spring begins to compress further and engages the firmer spring rate. Due to the variance in spring rate, the coils tend to spread out more, resulting in a taller looking spring, which then compresses to the set height.

Dual rate springs: These are among the newest form of springs available, fusing two independent spring rates into a single coil. They are designed to act independently with the softer rate used at slower speeds and then form the base for the stiffer rate during higher speeds or tighter cornering. Dual rate springs tend to sit within the same height as linear springs and offer a greater center of gravity while still providing great travel during off-road use.