Group -- I have a NOS Ashtabula bottom bracket conversion kit that I probably won't live long enough to use. It converts the Ashtabula BB so that you can use a standard tapered crank set on it.. It includes the axle, bearings, cups, and has standard 1.37 x 24 threads.
Also included is the special wrench that adjusts the cups. No manufacturers name on it.. I think there were several folks that made these conversion kits.. Price $40 --- including postage CONUS. PS -- it is not a lightweight item... :-) nelson miller -- Seattle, WA -- USA