New product for you guys and gals that are running stacks on their trucks. The clamps that came with your kits work..but how about a clamp that is cnc machined billet aluminium. Folks let me tell you that there has been a lot if time and effort put into these. They are 7/8" thick with stailess steel allen head screws. The clamps work on Ford,Chevy and Dodges and we have sizes from 4" all the way up to a monster 7" stack clamps. We have them in stock and ready for shipping... Rick