Flaming River 1505M manual coupler kit - sloppy?

I've seen that exact part you're talking about and the builder ended up using the OEM coupler instead. Sent their coupler back. It was one of my regular customers who builds customs for people. He was working on a super nice 69 Road Runner. Used the FR steering box, which was fine, but their coupler was just as you described.

I knew a girl with some slop once.