9. The heavy-duty track bars were the next big step to perform; Rancho incorporates the front mounting points in the rear drop-down bracket. After the rear mounts were bolted on, the track bars with polyurethane bushings went right into place. Notice the cool torsion keys at the top of the photo that enable the kit to use the stock torsion bars and keeps the torsion angles factory.
2004 Chevrolet Colorado Performance Parts & Accessories Installation