Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Backing Plate: Testing and Inspection






1. Inspect the rivets. The rivets must be tight and securely peened.
2. Inspect the rear brake shoe and lining contact points (where the rear brake shoes and linings rest).

NOTE: Deep grooves in the rear brake shoe and lining contact points could restrict rear brake shoe and lining movement.

^ If grooves exist, hand-sand the rear brake shoe and lining contact points.
^ If the grooves are still present after hand sanding, Replace the rear brake backing plate. Any attempt to remove the grooves by grinding may result in improper rear brake shoe and lining-to-brake drum contact.