Not alot to it, especially on the trucks with the Bendix style brakes. To disassemble, assuming that the cylinder was still funtioning, is simply a taks of taking off the boots, then carefully pushing the guts out. If it was seized, then things can get interesting, and IMHO it would be best to install new complete wheel cylinders. Next, would be a thurough cleaning, brake cleaner will be fine. Inspect the inside of the cylinder for gouges or pitting. Ideally, you will also want to check the fit of the pistons for wear, you will need a feeler gauge for that. If things look ok (no deep pits or gouging), then you will hone the cylinder with a brake hone. Use clean brake fluid as the lube for this-NO PETROLEUM BASD LUBES!! Once a nice surface has been achaivesd, and the cylinder is free of pits and such (again, if it's real bad, get new cylinders), thuroughly clean it again, check the fit of the pistons. To reassemble, the spring and cups go in first, lube them either with the lube provided in the kit, or if none was included, clean brake fluid. Then the pistons go in and the boots go on.
