I have changed over four of the Huskee splitters that the feet broke off to push threw wedge type. I have just always used the Northern equipment part number 3061 wedge. Its twelve inch's high. Probably been ten years ago I did the first one. Just did one last winter.
Do the rounds ever get stuck on the wedge if they don't split? Just retract the ram and put a shorty log in between to finish pushing it thru?