Not on a '65. On '66 up, there are two seals, one on the shifter and one on the throttle linkage. With the '65, you have a cable shifter and just the throttle linkage on the upper part.There’s two seals in the throttle linkage interface.
The seal looks like this. It is the same seal as the one used in '66 up where the throttle linkage goes into the valve body, but in this case, the seal goes in the case.