OEM GMC Envoy Brake Disc

GMC Envoy Brake Disc Parts and Q&A

• Rotor, Front
  19181002
  Q: How to service and repair the Brake Disc using the J 41013 and J 42450-A kits on GMC Envoy?

  A:

  Use the two kits j 41013 disc resurfacing kit (J 41013) and j 42450-a Wheel Hub resurfacing kit (J 42450-A) to repair the Brake Disc. Brake Disc refinishing should not address problems like brake growling or squealing noises plus other common brake issues. Brake Disc refinishes must be done when disc grooves exceed their approved measurements, surface wear becomes severe, brake wobbling results from excessive thickness changes, or discs present major corrosion and pitting below their functional surface. Use the j 42450-a cleaning tool to service the wheel bearing/hub assembly before you measure Brake Disc thickness using the micrometer; replace the disc when its thinnest point exceeds acceptable measurements. Clean all rust from the Brake Disc flange using j 41013 then remake the disc following the directions by the brake lathe manufacturer. Select 120 grit aluminum oxide sandpaper for optimal braking surface finish alongside a non-directional disc finisher (if available) then clean the parts with gm p/n 12377981 (Canadian P/N 10953463) brake parts cleaner or a substitute.
• Rotor, Front
  25826103
  Q: How to replace the front brake disc on GMC Envoy?

  A:

  To replace the front Brake Disc, first, lift and support the vehicle. Take out the tire and wheel assembly and the bolts of the Brake Caliper Bracket. Without the removal of the brake caliper hose, remove the brake caliper and bracket, supplying the heavy mechanics with wire. Apart from fixing the Brake Disc, mark the relation of Brake Disc with the Wheel Hub if you are reinstalling the same one. Next, unplug the Brake Disc retainers and the brake discs and chuck them away. If you are replacing the Brake Disc, be sure to clean its friction surface using denatured alcohol. Clean any rust or corrosion from the mating surface of the hub/axle flange using the j-42450-a (Wheel Hub Resurfacing Kit) then use the j-41013 (Rotor Resurfacing Kit) and clean the mating surface of the disc to the hub/axle flange. Mount the Brake Disc on the Wheel Hub, align it as indicated in the case of removal if the original disc is going to be reused. At this point, one should install the brake caliper and bracket assembly, and then install the Brake Caliper Bracket bolts and tighten them to 160 nm (118 lb ft). Lastly, reinstall the tire and wheel assembly as well as burnishing the Brake Pads and discs.