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Shift Parts 1960-1966 GM SM420

Shop now for Shift Parts for 1960-1966 GMC trucks with SM420 Muncie 4 speed transmission.

Shift Parts 1960-1966 GM SM420

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  • QU30676 SM420 3-4 Synchro Hub QU30676 SM420 3-4 Synchro Hub
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    QU30676 SM420 3-4 Synchro Hub

    30676
    $90.00
    QU30676 3-4 Synchronizer Hub for 1962-1967 GM SM420 manual transmissions
    Qty in Cart: 0
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    $90.00
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  • QU30677 SM420 3-4 Synchro Clutch Ring QU30677 SM420 3-4 Synchro Clutch Ring
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    QU30677 SM420 3-4 Synchro Clutch Ring

    30677
    $90.00
    QU30677 3-4 Synchronizer Clutch Ring or Slider for 1962-1967 GM SM420 manual transmissions
    Qty in Cart: 0
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    $90.00
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  • QU30679 SM420 Synchro Spring QU30679 SM420 Synchro Spring
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    QU30679 SM420 Synchro Spring

    30679
    $34.98
    QU30679 3-4 Synchronizer Spring for 1967-1972 GM SM420 manual transmissions. Requires 2 per transmission
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    $34.98
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  • QU30680 SM420 2nd Gear Synchro Spring QU30680 SM420 2nd Gear Synchro Spring
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    QU30680 SM420 2nd Gear Synchro Spring

    30680
    $25.00
    QU30680 2nd Gear Synchronizer Spring for 1965-1967 GM SM420 manual transmissions
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    $25.00
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