Wheel Bearings Keep Going Out!!!

New to the site, my 96 XJ with 3" lift, 31" tires, well off-roaded for years is going through front wheel bearings left and right. Any ideas as to what's going on here? Please help!!! Axles not bent, ball joints are fine.

What's your wheel backspacing???

It could be a bent housing.

If the axle housing is bent it will put additional strain on the wheel bearings.

Are they going out as soon as you replace them? I had some problems a while back, I went through 3 sets from carquest and everyone failed within a day. I went to autozone and got some and no problems. They could not figure out what was going on, I even took it to a shop to have one of the sets installed because they guy at the parts store didn't believe it. If they are lasting a little while, could be a bent housing. Is the Axle nut tightened to spec?
Dustin