Lots of companies sell JBA. Yes, I know they make them for your truck. To make them last a long time, look into getting them JetHot or AirBon coated. Rust proofs them, helps dissapate heat, and they will probably last for the life of the truck, if not longer.
1992 Blazer Sport, 350, 4L60, Rancho 2"[img]/wwwthreads_images/icons/tongue.gif[/img], 285/75R16 AT's, K&N, Flowmaster, MSD[img]/wwwthreads_images/icons/laugh.gif[/img] Aircraft, Cars, and Me