After fruitlessly scouring the interwebs for the upper shaft I widened my search. That led me to a Fleabay add for 1967-72 Chevy truck and Blazer tilt column parts. Thinking they may be the same I checked it out,. Comparing the pictures to my parts I concluded they were 90% the same. The important parts were identical like the bearings, races, swivel spheres, and the tilt cup they fit into was the same part number. I took a chance and ordered the upper shaft which came with all the fasteners too. YES!!!! It came today and it is the same! The only difference is the nut that secures the steering wheel is a different thread but since the seller included the right nut, I am covered. I test fitted the shaft to the tilt cup and it fits perfectly. I test fitted a Formula steering wheel and it fits. I figured that GM doesn't change parts if it can help it and I was right. Here are pics of the upper shaft being removed from the lower shaft and the swivel spheres coming apart. Then the Pontiac and Chevy upper shafts side by side. Lastly the new upper shaft inserted into a Formula steering wheel. Now I can proceed with cleaning and restoring this '67-'68 Firebird tilt column.
