After removing the wheel and drum, disconnect the brake line (using a line wrench) and plug the end to keep brake fluid from draining out. Unbolt the axle retainer, slide out the axleshaft, disconnect the parking-brake cable, and remove the backing plate. The axleshaft and its retainer can then be slid back into place, but don't bolt it down just yet. The SSBC kit includes two-piece adapter brackets that are marked and must be oriented properly. Slip the two halves of the SSBC adapter bracket around the axleshaft between the retainer and axlehousing end and tighten (40 lb-ft) using the original axle-retainer bolts.