[QUOTE=maddog34;23536575]a wealth of knowledge can be found here...
[URL removed]
and here too...
[URL removed]

The frame I have has these numbers at the base of the BB: TBI0405 CC5G1752 on the non-drive side and WTU 34401570A on the drive side. I looked at the link you sent but could not make neither head nor tail. Any suggestions? (sorry I had to remove the URLs from the response b/c the site wouldn't let me post URLs). Thanks