Rear Drum Brake Shoes: Inspection
- Inspect brake shoes for distortion, looseness, nicks or oil-soaked linings. Minimum rear brake lining thickness is .04" (1.0 mm). Repair or replace as required.
- Using spring scale and spring compression tester, check springs for proper tension, free length and set length. Replace springs if rusted or weak.
BRAKE SPRING TENSION
| Application | Free Length In. (mm) | Set Length In. (mm) | Set Load Lbs. (kg) | |
|---|---|---|---|---|
| Brake Shoe | ||||
| Hold-Down Spring | .591 (15.00) | .441 (11.20) | 20.1-24.5 (9-11) | |
| Return Spring Adjust Lever | 4.917 (125.00) | 5.311 (135.00) | 13.8-17.0 (6-8) | |
| Upper | 4.425 (112.40) | 4.783 (121.49) | 3.97-4.85 (1.8-2.2) | |
| Lower | 6.583 (167.20) | 7.488 (190.19) | 55.3-68.1 (25-30) | |
| Wheel Cylinder Spring | 1.472 (37.38) | .315 (8.00) | 1.98-2.43 (.9-1.1) | |