Daytona i figued out the distributer i have does not have the mallory guts iniside it so its gotta e the older style of mopar distributer. I found another mopar electronic vaccume advance distribbuter in my old mans garage and i tore it down just to see what i gotta do and it got me thinking. I should be able to pull the shaft off this spare distributer and get the slots shorter then pull the distributer out of my truck and trade shafts correct? that way i dont have to be without my truck forr very long i can get the slots shortend on his spare then whenever i have the free time pull the distributer out of my truck and tear it down take out the shaft and put the shaft that had the slots shortend onto my distributer. I dont see why i wouldnt be able to do that do you?