I've had problems with my 97 F150 brakes for a while now. My driver side keeps locking up. I cleaned the caliper pins and it seemed to fix the problem but only for a short while. Ithought maybe the brake line had collapsed so i replaced it too, but after bleeding the brakes, my caliper still locks up. Should i replace the caliper or does anyone have any advice?

 

Probably needs to be replaced. Had that problem on mine and it's all better now after I replaced the calipers.