Tim Ayres at New Elm is bringing Terry into our email conversation, so I’ll see what he thinks.
To Arwyns point about what’s in the tubes, now having read everything I can find on cross head repair, it seems a popular adjunct to ram a metal tube within the straightener cross tubes to give it added strength. Some mention solid rod. Mine looks like somebody welded something in there. The left side is relatively smooth but the right side looks like a bit of slag at the end. But it did hold until I opened the can of worms.
On my end I’m going to take a breather, clean up my work area, and level the car on the stands. Can’t measure anything with respect to plumb if it’s canted. Will also take out the oiler lines today.