4.3 efi or carburetor? I too did Rhino inside, and underbody, but stuck with painting the outside for looks. If it were around at the time, I would have chosen the new Rhino optional spray on that is hard, similar to linex. But inside the tub, I'd still go with the softer/rubbery Rhino lining. my 2 cents.Looking to do a 4.3 swap and redo the suspension and all new wirning. Also going to pull the tub spring and rinoline the whole thing inside and out. Oh and a new top.