Cap'n, If the underside is killer that's 1/2 (if not more) the battle most are dealing with. Me, I have (for more years than I'd like to admit, hint: it was the second one AMD sold) a full floor pan = rail to rail, toe board to rear seat riser. Still need to install that and right lower quarter section and trunk extension (both which I have, left sides done already) and, like Duke, no suspension front or rear.