1986-1987 Honda TRX350 FourTrax 4X4, 1987-1989 TRX350D Foreman 4X4 Service Manual, Page 201Get this manual
BRAKES Measure the rear brake drum I.D
SERVICE LIMIT: 181 mm (7.1 in)
Inspect the brake drum for scoring, cracks and concentricity
Measure the brake lining thickness
SERVICE LIMIT: 2.0 mm (0.08 in)
DISASSEMBL Y
Remove the cotter pins and anchor pin washerRemove the brake shoes and springs