Just in case any of you are interested I've got a ballscrew that needs to be rebuilt on ebay. It's for my 94 VMC15 on the Z axis 20" of travel. I pulled it out to have it rebuilt, and skf said it would take 6 weeks. The screw needs grinding along with the usual rebuild work. Anyway I couldn't wait 6 weeks and bought a new one from Fadal.

http://cgi.ebay.com/ws/eBayISAPI.dll...m=110384602984

Thanks for looking.