This may be the same as above but it is the only one in my Notes.
Who every you buy from be sure they supply you with instructions on how to torque the Shaft Nut. If you read the various so called turbo rebuild threads the torque varies from just tightening the nut to what you feel like to a torque+ X amount of degrees.
http://www.peachparts.com/shopforum/showthread.php?p=2161260&highlight=site#post2161260