2016 duramax with 6inch lift front cv axle popping out

[EddieHall]

While the truck has a load on the bed/hitch like a trailer with buggy ,pair of axles ,500lbs. Has anyone else had this problem,I have a RC 6 inch kit .the torsion bars are not cranked down pretty much at factory height compared to my buds truck. I'll be machining some 1/2 spacers. all I've found is the 6 bolt cv axle bolt pattern not the 8 bolt pattern