65 Barracuda rolls when in park

I haven’t spent much time looking into this, but have an issue with my 65 Cuda. 273 2bbl automatic. Trans shifts great, reverse good. Only issue is that it rolls in park. Is this an easy fix. Any help will be appreciated.
Check this shift rod here. Sometimes it gets bent over all the years of jamming it into park.
D20190611_205522.jpgDisconnect the linkage at the collum to see if you can then move the linkage on the transmission all the way into the park position. If you can get it into park and the wheels don't turn great! Then lay that linkage rod on a bench and measure it to get a base line measurment. Then you can straighten it a bit to add maybe 1/4" or so to the length. Might have to play with a bit to get it just right. Hope that's all it is and that this will help.
This is on a 72 Scamp but the fix should be similar. Steve