On a scale of 1 to 10, a 700R4 is about a minus 3. You'll have better luck with just about any other automatic trans, including an aluminum case 2 speed Powerglide! My first choice would be a TH350 or a TH400. How many bolts does the side cover on your OD trans have? If it's got 7 instead of 4, I'm definitely interested!
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!