overdrive secondary?

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overdrive secondary?

Postby csracing » Sat Aug 11, 2018 10:39 pm

Is there a diameter difference in an overdrive secondary or just the width for the wider belt?
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Re: overdrive secondary?

Postby RNorton » Mon Aug 13, 2018 1:47 am

Shockwave driven clutches are identical except for a spacer between the sheaves for the wider belt and perhaps the spring depending on the combination.
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Re: overdrive secondary?

Postby Kern Family Racing » Wed Aug 15, 2018 10:14 am

If it is a Polar clutch, the non-overdrive clutches are usually 5" in diameter on the sheave and the overdrive are usually 6" or more.
Scott and Jack
Kern Family Racing
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