Last year, I replaced my spindles & wheels bearings during some routine maintenance. This year, after only 12k miles, I'm in there again because of a prematurely failed axle seal.
This is what my spindles looked like after only 12k miles. Darkening in present at both the inner & outer bearing only on the Lower Half of the spindle. Interestingly both sides (driver/passenger) were almost identical.
Is there a reason for this that I'm missing? Wheel bearing preload too tight or too loose? Trunnion bearing preload incorrect? Normal?
Top (no damage):
Side:
Bottom:
This is what my spindles looked like after only 12k miles. Darkening in present at both the inner & outer bearing only on the Lower Half of the spindle. Interestingly both sides (driver/passenger) were almost identical.
Is there a reason for this that I'm missing? Wheel bearing preload too tight or too loose? Trunnion bearing preload incorrect? Normal?
Top (no damage):
Side:
Bottom: