Quote Originally Posted by scout-j-m View Post
I just looked up replacement calipers on Rockauto and all the images show a dual piston setup. I'm sure I just misread that elsewhere. Seems like everything bigger than a coupe/sedan will have dual pistons. I'll probably just have to research it more and make a decision. From a work standpoint I would already be replacing the pads and rotors so getting bigger ones wouldn't add anything to the job. Really replacing the caliper wouldn't be much more work at all either, just the cost of a pair of them. I would personally be fine with used ones myself if the price is right. Whatever I do, I am going to do a full brake fluid flush and bleed. I'm sure you are right though, new pads/rotors and shoes may totally change it. I'm sure the shop did a fine job last time as Ive had no issues but I don't 100% trust any place to give you the quality of stuff you pay for. At least I know if I do it, I'll do it right and use quality parts.
Curiosity got the best of me and I looked into it some more. Looks like you can take 2019+ newer four piston calipers and rotors and swap them on our trucks pretty easily.

Four piston calipers do not have slide pins and have two pairs of pistons on each side that squeeze the rotor. They more or less bolt on but need to be shimmed so they are centered on the rotor, since they cannot slide and self center like dual piston calipers.

Seems like a decent upgrade, the rotors are an inch larger and I'm sure the calipers provide a lot more clamping force.