I am having trouble with my breaks. I don't want to say they are locking up because i am still able to move the truck but the caliper is deffinately griping the rotor causing it to shake and pull right pretty bad. When i bleed them out all is ok for a few days then the same thing. Is the problem the calipers, master, or something else?

 

have you tried pushing the piston in all the way on the caliper?

 

My dad 92 d150 went through several pairs of calipars.

 

I haven't taken it apart yet because bleeding them is a quick temporary fix but i'm sick of climbing under there every few days. Calipers are 15 a piece so i hope that is the problem

 

I wouldn't wait. The calipers sound like they are just hanging up right now. If they freeze up they can generate enough heat to take out the rotors, bearing, hubs, and even the spindles. I would also change out the flexible hose any time you replace a caliper.

 

Make sure you have them on correctly too. A previous owner/mechanic didn't put the hold-down clips on one of mine. Occasionally the caliper would flip partway up and cause all kinds of trouble. It always slid back down when you stopped, so it took me a while to find the problem.