Still working on it, the actuator? shaft going into the PTO housing is easy to remove with just a cotter key holding the shaft on it's connecting handle. The other shaft; the drive shaft, not so easy, connected with two universals and a driveline to the lift gearbox back at the hydraulics. I am assuming I can remove the connecting universal connected to the shaft at the PTO by somehow pushing the driveline back to and inside the the rear universal temporarily so I can remove the PTO, which would then then be free of both shafts that go inside the PTO. So, still working on it - will let you know if this all works so I can get that shriveled O ring out and find a replacement thanks to your help. Would be nice if I could just remove that O ring without removing the PTO first, but it has a metal retainer housing and I am reluctant to just try to pry out around the shaft and maybe do damage to the housing or the retainer. Not sure its any better going at it from inside the PTO inside, but that seems a safer, if much more laborious solution?