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Old 10-23-2020, 01:49 PM   #35
40 Deluxe
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Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,779
Default Re: Fordomatic late shifting ('57 thunderbird)

Quote:
Originally Posted by KULTULZ View Post
Good overall description of period fluids -

Type F fluid was a "hot rod trick" for GM transmissions, sometimes mimicing a shift kit installation with the "more positive" shifts. B&M Transmission products seemingly patterned their "TRICK SHIFT" fluid after the way the Ford Type F fluid behaved, but that's speculation based on the way a GM trans acted with Trick Shift in it.



You're onto something here! Read the fine print on a bottle of B&M "Trick Shift". It says "Meets Type F specifications"! So it's possible "TRICK SHIFT" fluid is just Type F in a fancy bottle!
By the way, thanks for your research on ATF types. Well done!
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