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Custom Governor Spring for the C-4 to Increase WOT Shifts in Drive to 5000-6000 RPMS

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  • Custom Governor Spring for the C-4 to Increase WOT Shifts in Drive to 5000-6000 RPMS

    I have designed a spring that will raise WOT shift points in drive on a C-4 transmission. 5000-6000 rpms.
    It replaces the stock secondary spring in the governor.
    It will be necessary to lighten your secondary piston in the 12 grams to 14 grams weight area.


    Only the spring is supplied.
    The cost is $29.00 which includes shipping to the USA. I hate to ask for this cost, but the R&D time was very extensive after years of testing.
    I accept paypal or USPS money order.
    PM me or email amblerrace@live.com Only have several left.
    Last edited by wsa111; 09-08-2018, 12:46 PM.
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