i agree with the last post,if its stuck in the out position,it may be for a reason,just because your able to force it bacl in,does not mean its going to slide in and out smoothly,if it is hard at all coming out,then you jammed it closed using to much pressure,i would suggest replaceing the calipers,or rebuild them both,the piston should not bind upr have any pressure against it,work it like he said in and out,free smooth peration should be,if not,fix them.