904 shift shaft seal

I admit I am no auto trans mechanic, barely any kind of mechanic!! My new toy is leaking bad around the shifter shaft. The FSM is vague. Can I remove the old seal around this shaft and replace with the O Relly seal??? I have the floor already cut out replacing that, so I can easily get to it. FSM says also drive the new seal in with a 15/16 socket, with tran in car, like yea, I believe that too!! Rock Auto lists a bushing for that shaft too???? , The shaft has some slight wobble to it. IN a 76 Volare, floor shift car.
I'm just old, woreout, half blind, and getting senile!!! But a man needs to recognize his shortcomings!??????