All you have to do is replace the gauge. The new speedometer comes recalibrated so you can use it with the stock angle drive and cable, nothing else is changed but the speedometer unit itself in the dash. When you buy the conversion, you tell them what to set the gauge at. Hope this may help you. Dan Benedek -- +++ GMX - Mail, Messaging & more http://www.gmx.net +++ Bitte lächeln! Fotogalerie online mit GMX ohne eigene Homepage!