I'm about ready to take the chipper off and then put the bush hog on. Bought a HF QH which makes the bush hog's PTO need to project out another 4 inches. Will have to measure it, but it's plenty long. Suspect I'll have plenty length to get the 6 inches overlap. Fix is to get one of those PTO extenders, but I don't like having a PTO shaft hung out another 4 inches from the tractor. Would think it would put undue stress on the bearings inside and more possibility for wobble.
At least with QH, the swap out should be easy but for the PTO disconnect and connect.