From a rebuilder's point of view, avoid that 200R4 like a bad case of hives! it's a modification of the Turbo 200 to include overdrive, and it's got all the 200's bad features, a very expensive variable-displacement pump, and a flimsy overdrive! There are a lot of stamped parts, and some pretty flaky hydraulic circuits. They're one of the worst transmissions to rebuild I've ever worked with!
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!