I managed to get my cold tire pressure to 73 in the back of my 2500. The TPMS didn't like it that day, but by the next day it must have reset and decided it was okay. By the time I drive it to work it's back up to around 78 but the dingle doesn't scream at me every morning. The Firestone charts say I could run 60 and carry the 6000 lbs my axle is rated for. The front are a bit under 65 and that's more than enough for the 5500 the axle can carry.
I wish Ram would use the tire rating rather than maxing them out like they do. I guess they'd rather play safe, and I guess that's good because most people sort of ignore their tires.
