Stop in for a cup of coffee

So, with my rat rod, I am destroying outer wheel bearings. Maybe 500 miles on last set. 37 Ford spindles and F150 hubs using a kit from Speedway. Overkill for a 2000lb car. Car steers and handles awesome. Could it be toe in or out?
I dont think toe will trash a wheel bearing. Im not going to suggest adjustment was a problem, i will say i prefer to leave them a tad loose if anything. Grease? I use the sticky yellow castrol grease.