Sorry to bring this back from the dead but I've been reading a ton of threads and regarding 5100s 1.75 vs 2.5 settings. I have a 12 red TE... 5100s will go on all corners. I'm thinking 2.5 setting in the front and also bought a 1.5 daystar for the rear. My tires are 285/60/18 on method roost...