D1ck -
The Astro 10" (9 7/8") clutch is the one I used. Steppenwood used an 11" clutch on his 41, but I don't know what that clutch fits. The Astro common part number is RCF 4201. I have found out that NAPA (at least the one in Saginaw) will not sell the clutch by itself. They want you to buy the clutch, throw out bearing, pressure plate and guide as a kit. Standard Transmission in Fort Worth will sell the clutch by itself. Steppenwood used the RCF 4212. I'm sure NAPA will handle that the same way, but Standard will have it. Standard will need a few days to get either clutch. Let me know if you need more info.
Joe
