Hi, I picked up a 1963 Ford 3400. It had a couple of minor leaks in the steering column but functioned as it should. I decided to check the PS fluid level and top it off as needed. The manual said to pull the cap on the pump which I did. It had an O ring and a 3” spring under the plug. Replaced it and now my PS is dead. After doing some research I found that the 1963 had a reservoir for the PS up top by the radiator. So it looks like I pulled the wrong plug and now no PS. Thoughts, Suggestions, Hobby Mechanic in CT/MA?