ConcoursMustang Forums
Restoring - General discussions that span across many different groups of years and models => Drivetrain => Topic started by: jwc66k on August 15, 2017, 04:27:55 PM
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Ford jets are identified with the letter "F" after the number - 48F vs 48. From what I remember, the hole diameter was the same but the "F" was to identify a different internal design. Is that true and/or/if not, what does the "F" mean?
Jim