Thread: I heard a rumor
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Old 02-11-2015, 12:36 AM   #45
SCOTI
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Re: I heard a rumor

It appears the truck I pulled the parts from was a JB6 equipped truck. The vacuum booster I swapped in previously I based on the GM brake packages vs vehicle weight & went w/the JB7 spec'd part since it would be the most heavy duty vacuum set-up available (8400lbs).

Apparently they upsized things when going from JB6 to JB7 as the JB7 clevis/rod-end did fit the pin on my original hydraboost pedal. The weird thing is the thread size is actually smaller for the clevis/rod-end that's associated w/the larger pin.
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Last edited by SCOTI; 02-11-2015 at 12:48 AM.
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