Finally got my rack done. It turned out pretty decent, just need some snow to try it out. I was able to run 1 piece of tube the whole width of the sled, which should help with the strength. The ”L” brackets just slide in to the tube on the sled, secure with 1 pin each, and off you go. I might have to add a brace (or a bungee to the bumper) after I try it out.
Thanks
Marc