F 250 2WD Pickup V8-7.3L DSL (1990)
Backing Plate: Testing and Inspection
BACKING PLATE INSPECTION
Contact Pads - Clean the contact pads thoroughly and verify they are not burred or grooved. Burrs may be removed with very light sanding. If the
contact pads are grooved the backing plate should be replaced.
NOTE: Grooved contact pads may cause the rear brakes to drag or stick. If you attempt to remove the grooves by grinding or filing, the new
brake shoes will not line up correctly with the drum. This may result in grabby or chirping brakes.
The contact pads should be coated with a high temperature silicone lubricant prior to reinstalling the brake shoes.
Mounting Bolts - Verify the mounting bolts are secure. A loose backing plate will cause the rear brakes to be very sensitive or grabby.
Also inspect for signs of cracks, warpage and excessive rust, indicating need for replacement.
