[reeltimebrad]

yes forward of the collar and some use a zinc or magnesium shaft anode its alot more secure that way. Pss has dimensions that the bellows should be compressed on there website but there really only a starting point, if you find that they still spray underway you can continue to compress about !/4 inch each time until it stops. If you find you're off by more than a inch from spec I would reface or replace the carbon or replace everything.