Dakota Quad Cab 2WD V8-5.9L VIN Z LDC (2002)
INSPECTION
The piston is made from a phenolic resin (plastic material) and should be smooth and clean. The piston must be replaced if cracked or scored. Do not
attempt to restore a scored piston surface by sanding or polishing.
CAUTION: If the caliper piston is replaced, install the same type of piston in the caliper. Never interchange phenolic resin and steel caliper pistons.
The pistons, seals, seal grooves, caliper bore and piston tolerances are different.
Fig 14 Honing Piston Bore
The bore can be lightly polished with a brake hone to remove very minor surface imperfections. The caliper should be replaced if the bore is severely
corroded, rusted, scored, or if polishing would increase bore diameter more than 0.025 mm (0.001 inch).
ASSEMBLY
CAUTION: Dirt, oil, and solvents can damage caliper seals. Insure assembly area is clean and dry.
1. Lubricate caliper piston bore, new piston seal and piston with clean brake fluid.
2. Lubricate caliper bushings and interior of bushing boots with silicone grease.
Bushings And Boots Installation
3. Install bushing boots in caliper, then insert bushing into boot and push bushing into place.