i am going with just the van LCA in the front and flip in the rear. on my 84 step-side,a 79,XXX mile truck,no lean to either side,my truck sits 3 3/4 inches higher in the rear than the front. it's currently stock 318/auto,and near future will only be packing an aluminum headed 340/NV3500 5-speed. should sit level when done.