I have a 2012 3070RL and a 2008 4x4 Extended Cab Shortbed, I also have a Trailsaver BD3. When I installed the hitch it was on the lowest setting and the truck and trailer were perfectly level, but I only had 4-5 inches between the trailer and truck bedrails, so I raised the hitch up to the next setting which was 1 1/2 inches higher that gave me 6-7 between the truck bedrails and trailer. I feel I really needed that 6-7 inches the 4-5 was tooo close for comfort. Now when hitch up and I eye ball the front to back level the ball is up about 1 and 1/2 lines. I don't think it will make a difference but I'm going to be watching everything on my first trip to Florida and back especially the tires. Trailer towed home from the dealer real well ( 4 1/2 hours 240+ Miles ) but that was prior to the hitch adjustment.