Here is a totally unscientifically arrived at answer. 60psi in the front and 65psi in the rears. This will provide a more comfortable ride, will not fire the TPMS off and will provide an even wear pattern on the tires. You should rotate them every 10K or so. If your wheel alignment and wheel balances are all within manufacturer specification you should not have any problems whatsoever. As always, just my .02cents and YMMV. 80psi I use only when loaded to the absolute maximum that the truck is rated for.
Cheers and Merry Christmas
Mike