Dodge 2001 Ram 1500 Owner's Manual page 122

BR/BE
FRONT AXLE - 248FBI (Continued)
Condition
Loss Of Lubricant
Axle Overheating
Gear Teeth Broke
Axle Noise
Possible Causes
1. Lubricant level too high.
2. Worn axle shaft seals.
3. Cracked differential housing.
4. Worn pinion seal.
5. Worn/scored yoke.
6. Axle cover not properly sealed.
1. Lubricant level low.
2. Improper grade of lubricant.
3. Bearing pre-loads too high.
4. Insufficient ring gear backlash.
1. Overloading.
2. Erratic clutch operation.
3. Ice-spotted pavement.
4. Improper adjustments.
1. Insufficient lubricant.
2. Improper ring gear and pinion
adjustment.
3. Unmatched ring gear and pinion.
4. Worn teeth on ring gear and/or
pinion.
5. Loose pinion bearings.
6. Loose differential bearings.
7. Mis-aligned or sprung ring gear.
8. Loose differential bearing cap bolts.
9. Housing not machined properly.
FRONT AXLE - 248FBI
Correction
1. Drain lubricant to the correct level.
2. Replace seals.
3. Repair as necessary.
4. Replace seal.
5. Replace yoke and seal.
6. Remove, clean, and re-seal cover.
1. Fill differential to correct level.
2. Fill differential with the correct fluid
type and quantity.
3. Re-adjust bearing pre-loads.
4. Re-adjust ring gear backlash.
1. Replace gears. Examine other gears
and bearings for possible damage.
2. Replace gears and examine the
remaining parts for damage. Avoid
erratic clutch operation.
3. Replace gears and examine
remaining parts for damage.
4. Replace gears and examine
remaining parts for damage. Ensure ring
gear backlash is correct.
1. Fill differential with the correct fluid
type and quantity.
2. Check ring gear and pinion contact
pattern.
3. Replace gears with a matched ring
gear and pinion.
4. Replace ring gear and pinion.
5. Adjust pinion bearing pre-load.
6. Adjust differential bearing pre-load.
7. Measure ring gear run-out. Replace
components as necessary.
8. Inspect differential components and
replace as necessary. Ensure that the
bearing caps are torqued tot he proper
specification.
9. Replace housing.
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