I agree about the correct trac system. I posted a similar question as the OP -- but I have a 2011 f350 4x4, LB, CC 6.7PSD. I followed the advice about the correct trac (and I added the equa-flex equalizer and upgraded moryde hd shackles). I completed the install over New Years weekend. Between the correct trac and raising the pinbox one hole (approx 1 inch)-- I'm close enough to level. My receiver is the B&W companion, set at lowest setting. I think the B&W (even at lowest setting) is still a bit taller than other hitches. So you might want to consider which hitch you buy, and what kind of minimum and maximum height adjustment they allow.
I haven't done anything more than a 30 mile loop since I added the suspension components, but I can say that it's nice that the 5er is now acceptably level. It makes it much nicer inside the trailer now that table/couch/bed are pretty close to level while hooked up to my truck. I couldn't really imagine doing much boon docking with it nose-high. More importantly, I was concerned that towing nose-high was putting too much stress and weight on the rear tires of the 5er. It honestly feels like the truck rides much smoother on that 30 mile loop--I think because when it was nose-high, my pin weight was probably light and made the truck bounce a bit on the larger bumps in on the freeway. Now that the coach is taller and sits level and the center of gravity has shifted forward, it seems like everything tows smoother. Of course, it could also be due to the equa-flex that was added at the same time--or a combination of both.
I did he install over about 8-10 hours. Took my time over 2 days. I'm not going to lie--it was a bit frightening lifting the rig in the air and supporting on many jack-stands. I also used the landing gear on the front and kept the truck hooked up for added measure. It was rock solid--but just knowing the weight of the coach and crawling under it without its tires took some courage. You have to drill through both inside and outside of the leaf spring hangers in order to install the correct trac kit--which requires you crawl under the coach to drill the inner part.
I would like to take my rig to a shop with the equipment to set the alignment now that I have the correct trac, but I'm so happy with the results of just lifting the thing and getting it level. Now--just need more time for some camping!!!
Good luck with whatever you decide to do.
Originally Posted by AquaMan
Dexter axles make a lift kit for torsion axle trailers that sells for under $200 and raises about 3". Lippert has there correct trac (I think that's what it's called) that will raise a leaf spring trailer about 2", plus give you adjustments for correct tracking. Usually a couple inches on a trailer will make an acceptable difference for clearance on the TV.