Hy wickedinhere, your picture of your assembled brakes appears to show two brake shoes with the same amount of lining on them. I believe your brakes should have a primary and secondary shoe setup. The primary shoe which mounts towards the front of the vehicle has shorter brake lining than the secondary brake shoe has. Please check to make sure you don't have one side of the truck with two secondary brake shoes and the other side with two primary brake shoes.
