Yes. You are absolutely right. Your right rear brake caliper is starting to seize up and they only get tighter when hot. And get worse as time goes on. Get it fixed before you roast the bearing and seal, warp the caliper, and ruin the pads. Do both rears and check the fronts.. As a quick test, put your Jeep in neutral and see if it coasts easily on a smooth level surface. Or jack up a wheel and see if it turns easily by hand. I have a 1999 Grand Cherokee that went through seven calipers before we found four that I can trust. Thanks to the warranty I paid labor and parts only once. It can happen on any vehicle but using a phenolic plastic caliper pistons make me wonder. The parts guy will ask you if it's a Teves or an Okebono caliper so take one with you. If you have to guess, originals were Okebono and they use a caliper anchor unique to Okebono so don't try to switch. I hope this helps.
2 people found this helpful.