Re: Anybody tried an "add-a-leaf" system???
I took my van to a quality spring guy in Indianapolis and had them add a leaf to the rear. Worked great and raised the rear enough to match the front. About an inch. I think it cost $500. They had make new U-bolts. I took it back after a week or so and had them retorque the bolts at no charge.
2008 Ford E-350 Quigley 4x4 V10 - 164,000 miles
RB50, PH Top, Dual AGM Group 27 Deka, 2000 Tripplite Inv., No Propane or Water Systems
Van Weight 8,100 pounds, added one rear leaf spring, BFG AT KO LT265/70R17 E Tire press 50psi.