I have a '13 Denali 3500 DRW that I've added Timbrens & with the overload springs makes for a very harsh ride when not towing our 16.5k fifth wheel. I'm wondering if taking the stops off of the frame for the overloads & just use the Timbrens if that might soften the empty ride. The 5th wheel barely squats the rear when hooked up, just barely depresses the overloads. Anyone tried something like this, yes air bags are on my to do list.