I HAVE A 2001-F350-DUELLY-PSD-CREW CAB- 8 FOOT BED-4X4 WITH THE LA WEST PACKAGE ON IT. MY 5TH WHEELS IS 38 FEET LONG AND HEAVY- CARRIES MY 2 HARLEY IN BACK OF 5TH WHEEL. MY HITCH IS A 22K HUSKY- I HAVE NO PROBLEMS WITH BED HEIGHT. THE HITCH CAN ADJUST TO THE HEIGHT YOU NEED. 4X4 HAVE TO LOVE IT ON WET GRASS AND SANDY CAMPSITE. I TRAVEL FROM BOSTON TO KEY WEST FLA. HOPE THIS HELPS