It would probably be necessary to compare the remains of the broken gear to a Chevy item, especially the position of the keyway and the timing marks. Diameter and tooth count would need to be exact, other details could be massaged if necessary.
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!