Don't know how your driveway is setup or the width...if you can go out of it at an angle as opposed to straight in-out, it will help prevent what happened.
In other words, when leaving at an angle the rear tire on the truck that leaves the driveway last tends to help keep it higher.
2006 Flagstaff 831RLSS Travel Trailer
2007 Chevy 2500HD 'Classic' with the Duramax engine.
Converting a 1956 GMC PD4501 Scenicruiser, ex Greyhound into a motor home.