Hi to you all I have installed the Pertronix unit in a T3 distributer. You need to get a rotor that has a thin shaft or alternatively you should cut the outer collar off the rotor shaft. I have done the latter and have not experieced any problems to date. Regards Adriaan Loedolff adriaan@norton.ctech.ac.za '69 Squareback Automatic (199 400 miles)