RTS’ Ford 9” drum brake kits will help your ride stop better. They include new steel backing plates, new wheel solenoids, bonded brake shoes, new hardware and large 11” steel brake drums. They are predrilled to accept 1/2” studs and can be drilled out to 5/8” if necessary. These kits include 2 assembled backing plates with brake shoes, wheel cylinders, self-adjusters, park brake lever and springs. Features: 5 x 4.50” bolt pattern 1” diameter wheel cylinder 3.15” centre pilot hole 3.556” x 2” attaching bolt pattern - 3/8" holes 2.50" Axle face backing plate offset 2.77” brake drum register diameter