Straight axle? 37-48 ford? If so, I’m guessing either your Ackerman or your KPI is off, of those two, I’d guess the KPI as that would be more likely to wear wheel bearings
Yes 37-41 round back spindles. Akerman is way out from where it should, but again, 1000's of miles, and now suddenly issues. Not sure KPI, abut king pins are set. Only toe is adjustable