Rick... Thanks for the information about the lift arm and stabalizer pins lining up. It puts the puzzle together.
The brackets that came with the tractor were different from each other. The left one had the stabalizer pin very close to being in line with the lift arm pin but the right bracket was about an inch in front of the lift arm pin. It was the right arm that wouldn't swing in far enough with the stabalizer bar attached so I thought it was the wrong bracket (correct assumption).
I bought new brackets and new stabalizer bars from Sam's. The new right bracket was not much different from the older one. The pin was still too far forward. So was the new right one. I put the old left bracket back on because the new bracket made things even worse. I wasted $90.00.
I should have bought the stabalizer kit offered on this website but I didn't know it existed. The brackets in the kit have several holes allowing the pins to be repositioned. It may have solved my problem. I will look for another right bracket that will line up the lift arm pin. I don't need 6 stabalizer bars or I would buy the kit.
Dave... Thank you too. I slid the bracket all I could and it is still way off. I now know I need a different bracket. The brackets I bought from Sam's will not line up properly. They are either the wrong ones or the PTO conversion (different transmission) changed the positioning of the lift arm pins. This is a challenging puzzle.
The model number is stamped 850 and the serial number is 55430 (indicating a 1955 model 850). It isn't supposed to have live PTO so I am assuming it was converted. If the transmission was changed then I have an 860 rear end and an 850 front end. I love the tractor even if it is a cross breed. ;-) It is semi-restored and looks/runs very nice.
You guys were very helpful. Thanks again. Ed.