I have a prebent dual exaust set up That was made for a 84 1 ton 4x4 long box truck. All bent to clear transfer case and crossmembers. It was on for 6 month's and the truck died. I do not have tailpipes, it stopped at my rear diff. I DO have the manifolds. 1 is BRAND new and cost me 100.00 without the studs. I have 300.00 into the pipes/mufflers, and 150.00 in manifols. I want 125 for the exaust and will take another $100 for BOTH manifolds. These are just stock replacement mufflers. They might also fit 85-87, but have no cats.