Rear passenger side brake guide pins ceased up again

I have a 2019 Tundra with 75K on it now, but at about 50K my rear right passenger side caliper ceased up as I was coming over a mountain pass. I pulled it apart and other guide pins were burned up. I replaced the pads, rotors and caliper with OEM parts and it happened again. This time I caught it before it damaged the caliper and only front guide pin was cooked. The outside pad front side was worn 50% more than the other part of the pad. I cleaned the pins up again and applied a high temperature brake lubricant on it.
I'm not sure what's going on. The emergency brake pads appear to be adjusted correctly. The caliper looked good. I was wondering if anyone else had the same issue. I'm going to re-lube the pin every time I rotate the tires from now. It's not a big problem to do, but it's not something you should have to do. Let me know what you think.

 

How’s the wheel bearing on that side

 

I haven’t noticed anything wrong. It spins freely without noise, but I don’t check for play. I guess I should check that out. Thanks

 

You describe the pins as "getting cooked". I'm guessing they are heating up? Wheel bearing would be my third guess, after the brakes themselves. It's more likely the brake dragging creating the heat. Either the parking brake or the rear brakes. Caliper pistons can get stuck and create dragging.

 

T

The caliper was replaced with OEM part ??

 

Last time I replaced the original caliper, bracket and pads with Toyota parts, but used Carquest rotors.
This time I replace the pads and rotors with Carquest parts, but I didn't replace the caliper or bracket. I cleaned the guide pin and lube them up. The caliper seemed ok this time. There was no brake pad smell and the rotors did have any signs tempering or exposure to extreme heat, which is old because there was obviously heat exposure to the guide pins and the front corner of the pad was worn down as if the pad didn't retract when the caliper released pressure on it.
Since replacing these parts I have driven the truck 500 miles and over the pass twice.

I just check the bearing for play and it's all solid.
I can spin the tire with on finger. There is an audible dragging noise, but no resistance.
I pulled everything apart again. I backed the park brake shoes off until it wouldn't contact anymore. Reassembled everything to see if there was an drag or resistance and it was basically the same, so I pulled it apart again and set it so there park brake held the truck on a slight incline. Again I could spin the tire with one finger, again but there was an audible dragging noise with no resistance.
I'll drive it 1000 miles and check it again.

The only thing I question, but seriously doubt has any bearing on the matters is that when I start the truck and drive if a few feet there's an audible single thump noise from under the dash by the peddles. It's the similar sound, but half as loud as the sound you get when you accidently slip your foot off the brake peddle when braking and the peddle recoils and hits the stopper. It's done this since I've purchased it. I did some research on it and I've heard it's the ABS doing a check on the system. I'm only saying this because I don't know if this has any affect on the brakes. If I wanted to know if is changed things, I'd have to pull everything a apart after having driven it a few feet and disassemble everything while the engine is still running. But I honestly, I don't think this is the problem or else it would affect both rear brakes.