I have 1964 car and I put a 70 power steering box in my car. The pit man arm on the box takes a 13/16 center link, not the 7/8 link that is on the car. My question is could i just put a 68-72, 13/16 center link and pit man arm in. I have to change these parts any way, A 7/8 link is triple the price and this would save me from removing the pitman arm on the box.