The shifter in an F-body is different, so I think that the description by Dana67Dart is correct. Are you trying to use the shift arm on the transmission post for an A body, or the one from the Volare? If they are different lengths then the problem that Dana describes would occur.
When I bought the car, it had not run in years. It had the full A body console shifter setup, with some junkyard patchwork. To the best of my knowledge, the only thing Volare about the trans and shifter is that the trans is from a Volare.
When I got it, the selector mechanism appeared unmolested. The “tree” from the selector to the the trans had a weird bend - its long center axis was not straight. The shifter rod from the trans to the “tree” was a poorly welded splice that fell apart and lost a portion. Length and shape unknown.
I bought new shifter components, which includes an adjustable shifter rod.
