Type F fluid in 727

WELLL not all that "old school" the materials used in todays rebuild kits are anything but better then the originals. NOTHING in todays kits is as robust as it used to be...I have seen the internal build specs on both and have inspected them after specific use and I can attest that the newer parts are no where near their original counterparts.

THAT being said there are two well known racing tranny guys pretty close to my house ....they rebuild regular trans' to keep the lights on but they are known for building very HIGH performing transmissions for all makes...... their take is EITHER is fine, ONE is no better than another ( IN STREET VEHICLES ) if you are running over 1000 - 1200 HP different story...... so it is neither OLD SCHOOL NOR NEW SCHOOL....just tranny fluid