got a napa re-manufactured rear caliper to replace one with a cracked piston. noticed the new caliper has what seems to me to be excessive play in the caliper slider bolts/bore. i can take the slider pin and wobble it around in the bore. my other original calipers i re-built are nice and tight. did they over-size the slider bolt bore too much when cleaning up this caliper? seems like its enough the caliper will be able to move forward and back under braking....

 

Was this condition noticeable when applying the brakes in reverse? My 09 3500 sometimes has an odd feel to it when they are applied when backing from the drive way to the street.