Flywheel ID I was told the 8ba I acquired came out of a F-1 pickup. Since the clutch didn’t come with the motor how can I tell if a 10” replacement clutch would fit?
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Re: Flywheel ID usually you can see a witness mark where the old disk was, then measure it.
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Re: Flywheel ID Pick a pair of pressure plate bolt holes and measure the distance between them (center to center). If the flywheel was drilled for the 9.5” diameter pressure plate the holes will be exactly 3.00” apart. If it’s been drilled for a 10” pressure plate the holes will be 3.125” apart.
If you’re running a transmission with the big 1-3/8” input shaft, you should not use the 9-1/2” clutch setup as the fingers of the pressure plate are too close together and can hit the front bearing retainer of the transmission (as well as the release bearing carrier hub). |
Re: Flywheel ID Thanks Mac this is exactly the information I was looking for. I do believe the witness marks elude to an 11” but I knew there would be a better way to identify.
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Re: Flywheel ID Not sure what application you have in mind for the engine, but the 11 clutch is not a good option for most. You can always get it redrilled.
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Re: Flywheel ID So I’m getting a measurement of 3.125 from outside to outside and ~3.36 center to center. Is it possible to confirm this flywheel was drilled for an 11” clutch. Yes I’d like to have the option to run a T-5 so 11” would not work.
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Re: Flywheel ID Yes it is 11". Any good machine shop can redrill your flywheel for a 10" clutch
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