Cause  | Correction  | ||||
|---|---|---|---|---|---|
| 
 Important: Upon completion of all repairs, refill the axle with the proper amounts of axle lubricant and friction modifier additive. Refer to Rear Axle Lubricant Level Inspection and Lubrication Specifications .  | |||||
Restricted or damaged vent valve assembly  | Repair or replace the vent valve as required.  | ||||
Left side cover O-ring seal  | Replace the side cover O-ring seal as required.  | ||||
Worn or damaged axle shaft oil seals  | Replace the axle shaft oil seals as required.  | ||||
Housing or side cover porosity  | Replace the housing and/or the covers as required.  | ||||
Loose Drain or Fill Plug  | Tighten to specification  | ||||
Pinion Cage Assembly O-Ring  | 
 
  | ||||