My 2018 Freedom Elite Class C was almost 1.5 inches lower from passenger side to lower side/drivers side rear of coach. Thor has a spring spacer kit they sent to C.W. where I bought the rig and was installed on lower side leaf spring. The low side is where my slide out is and according to C.W., weighs in the range of 800 lbs. I looked at the spacer and it looks to be about 3/4 inch piece of steel. Raised the measurements to within 1 inch. Still lower but about 1 inch. In the future, maybe spring time, if I can afford to, want to have a set of Airlift air bags installed. Thor buys these Ford chassis and then puts a lot of weight on them without any additional suspension mods, both class A's and C's, and almost all people that own R.V.'s end up adding suspension mods of some sort. I'm having a rear track bar installed this week to help with tail wag which is common issue with my E350 Chassis. So all and all, when I get done throwing money into this pit, will have done SafeTplus on steering, track bar rear, air bags, and of course an alignment. Seems toughest one of all is finding a good alignment shop that is willing to play with the alignment as many times as necessary to provide best handling characteristics. At that point, I'm done with dumping money into it other than normal wear and tear and maintenance.