RAM 2500 Truck 2WD L6-359 5.9L DSL Turbo VIN D FI (1997)
Brake Shoe: Specifications
As a general rule, riveted brake shoes should be replaced when worn to within 0.78 mm (1/32 inch) of the rivet heads.
Bonded linings should be replaced when worn to a thickness of 1.6 mm (1/16 inch).