Blew out a rear tire on my Ram 1500 this weekend pulling the boat to the lake. I have about 26k on the original factory tires. Can I just change out the two rear ones? Or do I have to do all 4? I'm torn between cost vs. different brand. I really don't want the same Goodyear's, but I also don't want to drop $1000 right now on tires given it's a leased truck and I don't know what my end plan is. Plus not sure I can afford $800 to $1000 right now on good tires. Decisions, decisions.