Rich, Here is the unit number I used for my 230. It's an 1162A Ignitor. You need to make sure your coil is a points style coil with a minimum of 1.5 ohms of resitance, and if you have a ballast resistor in your system, to not remove it. It's a really straightforward install, and when you're done, take your original points plate, put it in the box and put it in the glovebox in case something should go wrong with the new unit. Then all you have to do is reinstall the original setup and your not left on the side of the road. Since I've installed mine, the truck starts better, runs better, and I've noticed the plugs burning cleaner. Here's the number..1-909-599-5955
