donmc1,
Yes, but it isn't a fun job. Its been years since I was under the dash to do a similar job. You end up on your back under the steering wheel with your arms wrapped around the steering column, amidst wires and brake pedal parts, metal cross braces, and will be extremely uncomfortable with VERY LIMITED room to get at what you want and be able to see it properly.
It is very frustrating. If you are up to tackling the job I suggest removing the seat from the car in order to give you some room for your body hanging out the door.
My 55's clock doesn't work, and I'm just fine with that. My antiques spend so much time in storage between drives, that a running clock would draw the 6 volt battery down to where starting would become a problem at times.
Good Luck, if you decide to tackle it!