Up today on my list is a rear ripper bar for use on my sleeve hitch.
3 - 16" ripper shanks mounted on 12" centers (3 hole purchased from Agri-Supply) as far as I could tell the shanks are not hard in the hole area so I might drop in a few more lower holes for adjustment. I was trying to get the shortest shank I could find, might find I don't need more holes after it's test fit to the back of the tractor hitch.
Using a 2x4 - 1/4" wall tube to hold them, this morning (or sometime today with any luck the way my day is going) milling the slots, kinda "winging the design" as I go based loosely around some other designs I have seen on the net.
I'll post some pics as I go along . . .