Quote:
Originally Posted by Synchro909
JB weld is no where near as strong as the original steel. IMO, filling the groove with JB weld is OK only as part of fitting a speedy sleeve over it for the new seal to run on but the axle is still weaker at that point
The usual place for a rear axle to break is right at the differential end of the hub and that is a result of worn hubs and bearings.
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On race cars using an early Ford rear end, most of them broke at the weakest point, the end of the keyway.