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Interchangeable Parts

The Puzzler


RAY: What part of cars is virtually interchangeable with virtually any other car, whether it's foreign or domestic, let's say within the last 30 years?

And don't say something silly like motor oil!

TOM: It's not liquid.... It's an actual piece that you can take out of any car, no matter where in the world it was made, and it would fit on any other car.

RAY: So, what is it?

Think you know? Drop Ray a note!

[ Car Talk Puzzler ]

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