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Condition Possible Causes Correction Axle Shaft Broke 1. Misaligned axle tube. 1. Replace the broken shaft after 2 Vehicle overloaded. 2. Replace broken shaft and avoid 3. Erratic clutch operation. 3. Replace broken shaft and avoid 4. Grabbing clutch. 4. Replace broken shaft and inspect Differential Cracked 1. Improper adjustment of the 1. Replace case and inspect gears 2. Excessive ring gear backlash. 2. Replace case and inspect gears 3. Vehicle overloaded. 3. Replace case and inspect gears 4. Erratic clutch operation. 4. Replace case and inspect gears Differential Gears Scored 1. Insufficient lubrication. 1. Replace scored gears. Fill 2. Improper grade of lubricant. 2. Replace scored gears. Fill 3. Excessive spinning of one 3. Replace scored gears. Inspect all Loss Of Lubricant 1. Lubricant level too high. 1. Drain lubricant to the correct 2. Worn axle shaft seals. 2. Replace seals. 3. Cracked differential housing. 3. Repair as necessary. 4. Worn pinion seal. 4. Replace seal. 5. Worn/scored yoke. 5. Replace yoke and seal. 6. Axle cover not properly sealed. 6. Remove, clean, and re-seal Axle Overheating 1. Lubricant level low. 1. Fill differential to correct level. 2. Improper grade of lubricant. 2. Fill differential with the correct 3. Bearing pre-loads too high. 3. Re-adjust bearing pre-loads. 4. Insufficient ring gear backlash. 4. Re-adjust ring gear backlash. TJ FRONT AXLE - 181FBI 3 - 17 FRONT AXLE - 181FBI (Continued) |