What is the difference between the standard YJ kit and the Extreme duty kit?
The Extreme duty contains the following additional parts to complete the suspension package; Front and rear greasable shackle kits, greasable main eye bushing kit, front and rear stainless steel brake lines, and a drop pitman arm. In addition to these parts, the springs included in the kit are the tried and true Extreme duty springs. Made by a major North American leaf spring manufacture. These springs undergo a strict material and production quality control so that the consumer gets nothing but the best in leaf spring quality.
