OK! Got it off!
I went to O'Reilly Auto Parts, again, and purchased their Pitman Arm Puller. Nice, heavy and does not fit. I took a hand grinder and abrasive to it to widen the gap just about 1/8 if an inch. Perfect fit. Much beefier unit than the five ton two clamp I first attempted to use.
Looking on one of the 4x4 boards they all recommended a product called PB Blaster to loosen the connection. I am a believer in that product, now! Worked well.
I took the longest ratchet that was in the drawer and two long extensions to allow me to really torque it up from just beyond the fender. I turned it so tight I thought I must surely be stripping the threads. I removed the ratchet and took a hammer to pound a few times on the extension ends. Put the ratchet back on and the Pitman Arm came off with ease.
To remove the steering gear easily, you need the military steering wheel puller and the modified O'Reilly Pitman Arm Pulller. If you have both, I think the Pitman Arm and steering wheel can be removed in less than 10 minutes.
The puller is available, generically it appears, at AutoZone and NAPA also. I do not think the adjustable gear pullers are very well suited to this.