All great advice, but I also have a concern with mounting directly to the bumper because of stories I have heard of the bumper rolling up when the Shackles are attached directly to the bumper. I was hoping and trying to think of a way to engineer something directly to the frame but through a penetration in the front of the ARB. In retorspect, I sometimes wish I had purchased the TJM....dont know if it is any better, but in any case did not want to mar the effectiveness of the crush cans/air bag operation.
BTW, this is a great forum/portal. I cant stay off of it. The Colonel (Wife) is always on my case about how much time I spend on here, but what the heck, I love it.