I have a 09 Ford F150 XLT that has been in the shop at least 6x since Feb for rear brakes.
The little metal bushing or whatever it's called keeps sliding out and rubbing on the inside of the rim. This has cut a small groove in the rim. What could be causing this? The mechanic is claiming it is the bracket where it bolts to the rear axle. He states that it must be tweaked out or slightly bent. I'm lucky that I can get that part without delay. If this doesn't fix it what does your infinite wisdom say it could be? Big fan and love your sense of humor. It reminds me of my old dad.
Sounds possible that could be the cause. Generally though when a mechanic works on your vehicle and you didn't have something like that happening before then the following are very good possibilities.
1. Person installing new brakes didn't install them correctly, or damaged something during the install.
2. A bad or defective part was used. Bad brake shoe, etc...
I'd say 90% chance one kf those two options. Of course it is possible to have something break on its own, but generally angood rule of thumb that when the last thing worked on has new issues it's generally not a coincidence.