Hello
You can get the weatherstripping for the entire sub from a company called the Truck Shop. There web site is
www.truckandcarshop.com and the number is 1-800-chevy-47 Are you guys gonna put a Porter Dropmember on the sub? That would be sweet. Good luck on the build. Lets see some progress pics A.S.A.P.
Wish I still had a burban!
Tony from Norcal