Well those little splined bushing dealies came off easier than I thought they would. Like David said those are allens. What is unsettling is they ground a small flat spot on the shaft for the allens, but the collet style arm should still grab hold. The allens are steel and the splined ends aluminum and I think that helped.
I stayed out and worked a little longer and got the center dash and heater out. They have been loosening for weeks. I am trying to get the large dash out, and I think there are 2 nuts back in behind the driver defrost still. I do not know if the dash will clear the steering wheel if I get those bolts out, and getting the steering wheel off has turned out to be difficult. I got one of the grub screws out, but the other 2 are giving me trouble. Any ideas on removing those grub screw would help.
This car has this evolutionary thing going. The wiring harness must have been replaced with a newer one from who knows when (but my guess is sixties or seventies). The wiring harness has the newer taillight fuse from I think 1959 is when that was added. Moreover, the wiring harness looks like it was installed at the factory, but does not have that waxy coating that I have seen on pre-1958 cars. it is like they slowly turned the car into a tr3 with improvements as time passed.
My hands are probably not as strong anymore, and I think I sprained them twisting out rusty nuts and bolts, so I am done for a while.
steve