Glad everything went well at the track...you were right on your dial, no apologies necessary. It was just a nail-biter...I've been in my fair share of those. Who's going to lift first in the lights..hehehe
Struts....how much more thread do you need? Too bad you don't have a lathe in the garage...turn the 5/8" strut material down to 9/16" back the requisite amount (you'd remove the little shoulder but could easily make a locator washer), continue the 9/16" 18 threads back with a die (easier than matching the threads on the lathe) and then stick it all together. IIRC, those struts aren't that hard, temper-wise..
If the slight bend where the strut bolts to the arm wouldn't fit in the headstock bore, you could always reverse it, chucking on the threads, and steady rest the round part before the bend...simple, eh?? *G*
That's why they pay me the big bucks...hehehe
I just shortened and keyed a hardened transmission shaft for a local tractor puller Friday...it'll be interesting to see how my emergency ingenuity played out this weekend....it's always something...