After some calling around I ended up with Rare Parts.
They couldn’t find a part number and said I’d need to send one for copying. I asked and several people today including rare parts said only one steering box is listed and there isn’t a reason to believe it’s engine application specific.
So two problems remain, one I need a pitman to send. Two, I need to be willing to part with “at least” 300 bucks. Possibly more once they give it a go.
I’m only guessing mine is worn out. The box pours and I thought I’d just knock this out while doing the repair so things will be golden.
I’d go a hundred for sure if we can get a group going. We all should need one down the line and this project helps us all out. The steering box is for 77-79, so it’s safe to say this is only a three year part, maybe somebody can sort out if it covers more or not.
Forever in debt to your priceless advice...