The lower sides of the endlinks attach to the axle just like the factory units; only JKS uses high-quality rod ends with rubber seals to prevent contamination. We like the fact that all visible surfaces are protected by a zinc coating. The connecting rods are designed to accommodate a wide range of lift heights and must be shortened accordingly. To establish proper rod length, arrange the horizontal edge of the swing arm so that it is parallel with level ground. Next, measure the distance between the center hole of the bracket on the axle and the center of the bolt on the Gimbal joint, then subtract 3 inches. This is what the overall desired rod length should be. The supplied rods are 9 inches long. Subtract the desired rod length from nine and divide by two. This tells you how much material to remove from each side of the rod.