What could have caused this.

I see you’re near Phoenix, either way, find a Shop with the correct tool. It’s a mini air hammer press. Makes it an easy, book rate job. I think I paid $300 labor, tops. Used ATRO anti walk polyurethane bushings. Purchased at Fleet Pride. Not crazy about ATRO, had bad performance from motor mounts, I won’t use them again on anything, rear spring bushings on air liner being the exception. Because of the anti walk design. Beware, if using them, they’re hard as a rock, Hold up good though. It’s a trade off. They don’t seem to have much swivel, movement either, once installed. I’ve jacked up a wheel, and had them make a popping sound.Side movement is definitely not a problem, due to the design. They’ve held up good, it’s your call.

 

Fwiw.. You can get firestone steers put on the truck for the same price as chinese at tims tire in harriman tennessee.. Just west of the knoxville chicken house.. Few miles north of 40 on 27. Dont even have to unhook trailer for steers. $900 out the door for fronts. Had drives put on yesterday.. 3rd truck in line and i was out in an hour. Dude sells 200 truck tires a day, nice as pie.