TM10-3930-660-34 Table 2-1.  Direct Support and General Support Troubleshooting Table (Cont’d) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Step 4. Check for dirt or debris in the front differential housing. Disassemble, clean, and assemble front differential housing, para. 8-5. Step 5. Check for improper assembly of front differential. Repair front differential, para. 8-5. 10. EXCESSIVE DRIVELINE NOISE Step 1. Check front differential for proper installation or component failure. Remove, repair, or install front differential, para. 8-5. Step 2. Check front axle for breakage. Replace front axle shaft, para. 8-3. Step 3. Check front axle and differential housing for bends. Replace front axle, para. 8-3 or front differential housing, para. 8-5. Step 4. Check wheels for proper alignment. Align wheels, TM10-3930-660-10. Step 5. Check for dirt or debris in the front differential housing. Disassemble, clean, and assemble front differential housing, para. 8-5. Step 6. Check for improper assembly of front differential. Repair front differential, para. 8-5. 11. FRONT DIFFERENTIAL HAS GRINDING NOISES Step 1. Check front differential for proper installation or component failure. Remove, repair, or install front differential, para. 8-5. Step 2. Check front axle and differential housing for bends. Replace front axle, para. 8-3 or front differential housing, para. 8-5. 2-8