Interesting morning today...

[BYprodriver]

I think this is the 3rd time this year someone has posted this on a forum. I use blue loctite for the same reason. You have to minimize the amount of grease that gets on the bolt threads when you install the bolts. If enough grease is in the threads of the bolt &/or half shafts the locktite is in-effective.

[Meir]

Originally Posted by BYprodriver

I think this is the 3rd time this year someone has posted this on a forum. I use blue loctite for the same reason. You have to minimize the amount of grease that gets on the bolt threads when you install the bolts. If enough grease is in the threads of the bolt &/or half shafts the locktite is in-effective.

+1 on that.
most of the time you hear about that, it happens after an axle rebuilt.
when you install back the shaft and tighten the bolts, some grease squeezed out, and contaminate the tread.
last time i installed the shafts, i spent a lot of time cleaning the bolts and the treads with wire brush and alcohol.
used blue loctite, and re-torque after 500 miles.
worked for me so far.
it is also not a bad idea to re-torque the bolts with every oil change.