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This is from a bellhousing off a B9 block with hydraulic clutch. I do not know if that would make a difference to the pivot point. I also do not know how big the truck was.  From pivot point to throwout bearing c/l is approx 3-1/4" From pivot point to clutch rod c/l is approx 6-1/4"  Part no. is TAAK-7515-B .
South Australia
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charliemccraney (1/18/2014)
See how it compares to the dimensions we've posted and the number on it.The number is TAAA-7515B. Dimensions are 5 3/4" x 3 3/8". I measured with set of dividers. The fork is from a '56 Mercury M100 witha 272, 11" clutch and a light duty 3 speed trans. Hope this helps
Mark
1956 Mercury M100
1955 Ford Fairlane Club Sedan
Delta, British Columbia
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Same casting as mine but I measured with a rule and one eye.
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Rono (1/17/2014)
So would car clutch forks have a different ratio and if so, why?
RonoI agree with Horvaths. Probably for increased leverage. Some trucks had 10.5", 11" and 12" clutches (pressure plate springs were different). Also cars had the big helper spring on the pedal while trucks had the through the floor thigh-master style pedal.
Mark
1956 Mercury M100
1955 Ford Fairlane Club Sedan
Delta, British Columbia
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Cool! So it looks like '54-'56 and '57-'64 are different.
Lawrenceville, GA
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My '56-'57 book shows TAAA 7515B for '56 and B7C 7515A for '57,,,,,10 5/8 and 11 1/4 approx. length respectively
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