When I ordered my 5th wheel, my dealer wanted to sell me a Pullrite slider hitch and after doing the math I could not see why I needed one. I have a 6 1/2' bed and I have measured the cab clearance with the 5th wheel angled as far as I would ever want go and the measurement is 6+". I am already at maximum weight, so I went with the 35 lb. Andersen. I really like it so far.
2012 Ram 3500 CCSB SRW 6.7 Cummins 3.73 Gears
2012 Forest River WP27 Toy Hauler-sold
2017 Montana 3610RL, Andersen Ultimate II 24K