so I have couple 58 Apache monojets to rebuilt and one for a 53 GMC. Under the carbs on each is an insulator, that is cracking on most all of them. I know the resto shops carry them, but surely there is a factory part number I could find something local (at a napa or something) this weekend? anyone got a part number? LMC lists them as 32-3912, ecklers lists them as 129207, but somewhere there must be a factory part number, would seem these commonly need replacing due to cracking/vacuum leaks??? trying to get a truck going this weekend if I can, most chain stores can order and get in a day or so if you have part number
