Differential Axle Housing: Testing and Inspection
BEARING RETAINER AND AXLE SHAFT INNER OIL SEAL CHECK^ When brake drum has been removed, check inside of brake drum for gear oil leakage.
^ Also, check backside of brake back plate for oil leakage.
If oil leakage is found, replace defective oil seal.
^ Whenever it is possible to check oil seal during disassembly, check its lip for wear.
If oil leakage or worn lip is found, replace defective oil seal.