Rick, you're right, in Texas you guys just twist off bolts that require a complete dismantling to repair, huh? After smoking up the neighborhood for months and killing God knows how many endangered species...
Thanks for all the replies, good suggestions (except you, Rick

).
I'm about to try a stock unit (price, availability, etc.), and either send my McLeod unit to them for a rebuild or buy the part and do it myself, then I'll have a STEENKIN' BACKUP!!!