The front shackles wound up being a bit overkill. I used 1.5 x ½” thick material to make them. The holes are at 5” center to center, and I milled out 1/8” per side to get the correct offset (Waggy bushing measures 2.75” and the YJ bushing measures right at 3”). There was some .120” 1 ¼” Tube laying around that I made the middle spacer out of.
Needless to say, I’m itching to get on with the bed bob just so that I can easily walk around the thing with the garage door closed (its been cold and wet here lately).