Spicer Drive Axles Failure Analysis Service Manual - Manual (Page 26)

Wheel Differential
25
Spinout - Over Heat Failures
Side Pinion Thrust Washers - Scoring Side Pinion - Galling
Wheel Differential - Catastrophic Wheel Diff. Spider Arm - Galling
General Description: Spinout is excessive wheel spinning that produces damaging heat. High heat breaks down lube film,
allowing damaging metal-to-metal contact. Long-term spinout could produce complete axle break-
down.
Usual Causes: • Main differential spinout occurs when one wheel remains stationary while the other wheel is spinning.
Failure Prevention: • Drive Practices - see Failure Prevention Section
Cracks Grooving
Galling