[_paralyzed_]

Mechanics wire comes in different gauges, anything you have should work. Unless you wreck the hanger, you shouldn't need wire, but may. My point is its just a pipe hanging under a truck, all you gotta do is get it hung under your truck. You said you had 2.5" pipes, so you'll need 2 2.5" clamps, and probably a sleeve (adapter) to slip in the glasspack and in the existing exhaust with a clamp on either side. Your local auto parts store will have everything. And if something doesn't fit you get to drive around with no muffler while you get parts! (everybody's gotta do it once!)