Here is my Diy4x bumper. It has the option for longer springs. It had a XRC12 and 9 1/2 ton WLL shackles. There is 22 bolts holding it on. It combines the leaf spring mounts and body mounts also.
[img]http://i933.photobucket.com/albums/ad175/jcarpenter_2010/066-4.jpg[/img]
[img]http://i933.photobucket.com/albums/ad175/jcarpenter_2010/061-4.jpg[/img]
[img]http://i933.photobucket.com/albums/ad175/jcarpenter_2010/060-4.jpg[/img]
[img]http://i933.photobucket.com/albums/ad175/jcarpenter_2010/029-4.jpg[/img]
[img]http://i933.photobucket.com/albums/ad175/jcarpenter_2010/027-4.jpg[/img]

Makes me want to get a Full size chevy, wish i knew someone getting rid of a first generation K5
