Interchangeable parts

There's about two dozen computers, and some will likely be the same. Chrysler used two styles of relay. One is a 1" cube and one is considerably skinnier. Those were used for very many years.

The original reason I became a big fan of the Chrysler company is the fantastic parts interchangeability between years and models. That does still extend to current models, but not to such an extent as in the '60s and '70s. To figure out if parts are the same between two known models, look them up on the web site for an auto parts supplier. I use the Rock Auto site every day for reference. If you find the same part number for both applications, they're the same. The problem is if the numbers are different, you don't know why. For your window motors, for example, only the plug might be different. You might be able to pull the terminals out of the connector body and slide them into the one you need, but that means the new motors will have totally different part numbers.

That works well when only two or three models are involved, or you have a donor car for used parts. When you're discussing hundreds of potential donor cars in a salvage yard, ask them to look up your model in their "Hollander Guide". That is a huge, very expensive book that will list every part on your car with a code number. You look that number up in the back of the book, and it will list every year and model that used that part. Now you can run through the yard and look just for those models.

Much of those two are very different. The Coupe is actually a restyled Mitsubishi Eclipse while the 4 door and convertible are a Chrysler designed platform. Fuses, relays, light bulbs and other small items will interchange but most of the other parts are vehicle specific. They just share the name.