Quote Originally Posted by Fast355 View Post
Are you using the wheel cylinders off the 13 x 2.5" brakes or the 11 x 3"? When I put the light duty 6 lug 3/4 ton 9.5" rear end in my Express I was able to reuse the 8.5" backing plates, brake shoes and wheel cylinders and merely changed the drums.

13 x 3.5" is what I will be running in the rear with the 10.5" 14-bolt as well.
Yes, the cylinders are from 13 X 2 1/2 brakes. 1 1/16" diameter cylinder. Carquest number EW79767. The original number is EW79768.

You can tell if your park brake has the auto tensioner by looking for a single flat piece of metal resting against a clear piece of plastic below the pedal arm. When you apply the brake this piece moves away from the clear plastic and creates friction to hold the drum that pulls the cable.

The full floating rear is a nice choice. If it's the one with slip on drums then the hubs are unique to that axle. The distance between the inner and outer hub bearings is smaller on the slip on axle and the wheel flange is located slightly closer to the inner wheel seal compared to most 14 bolts.