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Old 10-21-2018, 08:14 PM
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fbd73 fbd73 is offline
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Default Power Steering Pulley

Hi All,
I have a question.
I am looking at putting a pulley kit on my '73 350 Formula and they are asking if the power steering pulley has a 5/8 keyway shaft or a 3/4 press fit shaft.

Any help please?

George

  #2  
Old 10-21-2018, 10:03 PM
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kencar62 kencar62 is offline
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If your P/S pump is stock, it should be a 5/8" keyed shaft.

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Old 10-22-2018, 07:16 AM
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455hota 455hota is offline
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Yes stock pumps have the 5/8” keyed shaft.


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Old 10-22-2018, 07:20 AM
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Sometime around '75 or '76, the pumps changed to the 3/4" press fit shaft.

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Old 10-22-2018, 11:50 AM
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necdb3 necdb3 is offline
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Does it have a nut holding the pulley on?

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Old 10-22-2018, 08:23 PM
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5/8" keyed shaft has a nut holding it on.
3/4" press-on pulley doesn't use a nut.

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Old 10-23-2018, 07:21 AM
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Thanks all. A great source of info.

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