Transmission gears fron the Zephyr, and also the Cadillac/LaSalle cars would fit the Ford transmission case, IIRC. Lots of parts like that would actually swap between manufacturers' lines back then. Some of the Lincolns actually ran GM Hydramatic transmissions!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!