Ah, I understand better now. I don't have the revolution but I do have a sidewinder. They do tend to hang lower than a standard kingpin box. I have my hitch in the truck lowered as far as it will go and the sidewinder raised as high as it will go and I'm still an inch high in front. Add your newer truck bed being higher and I'm surprised you are only an inch high! Sounds like you are good to go. Have fun!!!!
Scott and Liz - Southern NM
2012 Wildcat Sterling 32RL - w/level up (best option ever)
2007 Chevy 2500HD 4dr short bed Duramax w/allison
Reese Fifth Airborne air ride king pin coupler with Sidewinder