I'm having a problem keeping the right rear axle flange bolts tightened on my truck. Had some rear end work done 2 months ago and he had to heat up the hub to remove two snapped flange bolts, but he replaced all of the bolts with grade 8 hardware on both sides.

Now twice in about two months I've had all 8 axle flange bolts work their way finger loose and start leaking gear oil badly. The first time I used red lock tight and an impact, now less than a month later its happened again.

Any ideas? The drivers side hasn't given me any problems?!?!

 

Loose bearings? Hate to think of anything worse...

 

How would loose bearings allow the axle flange bolts to come loose?

 

By constant wobbling if the tire/wheel assy is even slightly out of balance. Throw some lock washers on it, my M/H has internal star lock washers on the axle bolts.