I dont get it. I dont drive hard really, I take good care of the truck, dont drive offroad to much and yet I keep blowing thru front calipers. First set I got 10k out of and then replaced, 2nd set I got 40k out of. Replaced the pass side about a month ago due to one of the pistons locking up and the drivers side one of the pistons locked up and I replaced today.

Seems only one or two of the pistons will lock, and no amount of prying, beating, clamping, spraying or heating will free it.

It cant just be the suppliers, so far have had a delco, a prostop (pepboys), cardone and a beck arnley iirc.