OEM Chevrolet Express 3500 Brake Drum

Chevrolet Express 3500 Brake Drum Parts and Q&A

• Brake Drum
  15635951
  Q: How to service and repair the brake drum on Chevrolet Express 3500?

  A:

  Start brake drum servicing by getting the Rotor Resurfacing Kit (J 41013). For effective service the brake drums need to stay untouched despite brake noise complaints or other general surface issues. Refinish the brake drum only when the groove depth exceeds its specifications and causes strong pulsating or when the drum body shows excessive roundness levels beyond permitted ranges. The brake drum needs replacement when the largest measurement by micrometer goes past the refurbishment limit. Use the Rotor Resurfacing Kit (J 41013) or a suitable alternative to clean all rust from the brake drum flange surface. Follow brake lathe manufacturer instructions to refinish the brake drum because only excellent braking surface finish delivers proper vehicle stopping power. After machining sand the brake surface with 120 grit aluminum oxide sandpaper to make it non-directional then clean it with brake parts cleaner GM P/N 12377981 or equivalent.
• Brake Drum, Rear
  15693468
  Q: How to replace non-demountable rear brake drums on Chevrolet Express 3500?

  A:

  Set up safe stands while lifting the vehicle to work on the non-detachable rear brake drums. Put the pin inside the park brake lever before removing the tire and wheel. Make clear marks to note the Brake Drum's position before you disassemble it. Also disconnect the retainer pieces if they exist then take off the Brake Drum. To install the drum brake align it using the relationship mark and set it on the axle and afterwards you can replace rear Brake Drum retainers if they are present. Set the new tire and wheel on the rear axle then release the park brake pin and adjust the rear brakes. Take away the safety stands and let the vehicle down to the ground. Service your wheel brake components properly by never sanding or grounding brake pads plus never cleaning with a dry brush or compressed air because some brake components may have asbestos fibers. The used cloth must be sprayed with water to remove dust before using commercial equipment that stops fiber fallout during washing.