Good Question, Gene.
It's a little hard to describe without a drawing or photos, but here's my plan. I'm going to have two stainless plates made up which will be bolted or welded onto the sides of the two existing outside plates. The two added on plates will extend out (forward) and be bent in to provide the 4 inch space between them, since the two existing outside plates are more than 4 inches apart. This will place the new, single 4 inch roller forward of the two small existing rollers. The problem I'm having, now, is the anchor chain and shackles are too big to roll over the top of either of the two small rollers. I'm just getting started, but I'm intending to make the profile of the new plates such that a pin can be inserted through them and through the trip line hole on my CQR to secure it when not in use. I'm going to try this approach because it sounds simple and relatively cheap. It might be a month or two before I get to it, but when I finish, I'll post pictures. Hope it works.Bob Miller"Gusty Getaway"