is the shift lever on this powerglide set up for a floor mounted shifter or column mounted? If it is column, is it easily adapted to floor shift without pulling the trans apart? It faces down in park. Correction, that is neutral in top photo. This photo shows the shifter all the way forward in park which leads me to believe it was originally a column shift
I looked at the 62 corvette ***embly Manual, which was the first car to use the aluminum PG, and it had a floor shifter, and the diagram shows the lever going UP from the pivot. So I think you're right, it's column shift.
Trans came with a fancy aftermarket pan with a drain plug, I'll ask my cousin (my trans guy) if I can get to it by pulling the pan and valve body and if i can turn it 180 degrees or if i need to use a totally different shift lever. I might have another plan, I'll let you know if it works
...but did the Corvettes with aluminum Power glides have a backwards shift pattern? I believe that the earier ones with cast iron 'glides did.