Actually, if I remember right, the speedo drive gear that goes into the rear of the transmission fits in a removable eccentric housing. The amount of "adjustment" (by rotating) of the housing is determined by size (tooth count) of the drive gear you install, and is not used as a fine tuning adjustment. The size gear you use is determined by your final drive (axle gear) ratio. If you know your rear axle ratio and the size of your rear tires, your Mopar parts person can help you pick the correct gear. Bill ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm