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Thread: Drive Shaft Adapter fitment question

  1. #1
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    Drive Shaft Adapter fitment question

    When I went to mount the driveshaft adapter, I noticed that it does not seem to fit properly with the differential.

    Attachment 105776

    The diameter of the gold adapter plate is too big to fit inside of the flange of the differential input shaft.
    Attachment 105814

    Attachment 105775

    Attachment 105815

    The manual states:
    "**There are two different Driveshaft adapters, one for center sections from automatic cars which is coated clear zinc.
    The Driveshaft adapter for center sections from manual cars is coated yellow zinc."

    Strangely the Silver/Clear coated adapter plate fits, but the Gold/Yellow does not fit.

    I guess it might be possible that one of the flanges was finished in the wrong color. But not both...
    What am I missing?

    I cant see any reason not to use the Silver Adapter.
    Attached Images Attached Images

  2. #2
    Senior Member FF33rod's Avatar
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    I had the same problem. Ordered the IRS option from F5, they also supplied the driveshaft and gold adapter as well. Gold adapter didn't fit in the IRS flange. Called them and they sent the silver one, it fit....
    Cheers, Steve
    Gen 1 '33 Hot Rod #1104
    347 with Holley Sniper & Hyperspark, TKO600, IRS, 245/40R18 & 315/30R18, DRL, Digital Guard Dog keyless Ignition

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  4. #3
    Senior Member CraigS's Avatar
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    Use whichever fits regardless of color.
    FFR MkII, 408W, Tremec TKO 500, 2015 IRS, DA QA1s, Forte front bar, APE hardtop.

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  6. #4
    Senior Member GTBradley's Avatar
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    Confirmed. The only one I had was the silver one for my IRS setup and it fit nicely. The manual needs to be updated in a number of locations.
    Bradley

    Build thread - Mk4, Coyote, IRS, Wilwood brakes, old-style soft top and accessories.

    The distance between "finished" and finished is literally infinite.

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  8. #5
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    Thank you! I appreciate the feedback. Silver it is!

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