did you see:
Halyard Box Thread A year after I got my replacement box at Wickford consignment ... I saw several others still buried in a box of stainless parts. Although the original box is overkill, the holes for the pins wear and some of the rivets that hold the box also have to be drilled out and replaced.
In my case I got the replacement box as I was short on time so didn't have the time to take out, figure out what to do, and then get that done.
I figure I have at least 20 years left on the replacement box ... which was new, but at least 25 years old when I got it from Wickford a couple of years ago.
While we were at it we ran the second spin halyard just because the original box had that extra sheave.
For that matter you may be able to just get away with rerouting the spin halyard into the lower spin halyard slot.
We use it for peeling ... something the kids like to do to keep occupied on light wind days.
