The best place to go looking for a 700R4/4L60 is under a V6 engine S-10 pickup. Ditto on using the midrange transmissions- - - -the early ones had growing pains, and the later E-series transmissions need a computer.
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!