Need help I have a 93 F150 XLT 2wd 5.0 302 the problem I have is the front brake calipers keep coming loose one or if not both of the metal & rubber keepers that hold the caliper to the wheel either come loose or fall off then I get a chatter from the front end upon stopping any idea how to keep the keepers in place HELP PLEASE

 

Those keepers are supposed to be a friction fit. should fit pretty snug. Maybe you need new ones that are not worn out from age. They may not be expanding back out once you hammer them in.

 

may be time for some fresh ones like Boggin said.

are these what you are refering to?

 

those are the ones I put new ones in and two weeks I lost one not sure whats going on

 

It's been a long time since I have worked on that style of brake, only thing I could suggest, maybe the parts store sold you the wrong ones, and they are smaller than what you should have. just guessing, but I have been sold wrong parts many times.