Swiftline Kit for WHLB4 Brakes which have a 1.25 inch piston. This caliper uses 4 #10 bolts. This SwiftLine kit includes 2- MBS4, 2- SBS4, 1 BRL-2 for use with WHLB4 brakes. The linings come installed on the brake shoes. This kit reflects a 20% discount on the reline kit and 60% discount on the brake shoes. There is no charge for the installation ...