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Thread: Drive shaft adapter doesn't fit IRS yoke.

  1. #1
    Junior Member
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    Drive shaft adapter doesn't fit IRS yoke.

    I purchased the IRS directly from FFR and it came with an adapter to mate the driveshaft with the Ford yoke however it won't fit. The diameter is about 1/8-3/16" too big. Any suggestions? I just sent an email to Tony at FFR and I'll update this post once I figure this out.

  2. #2
    PLATNUM Supporting Member
    wallace18's Avatar
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    Quote Originally Posted by GBPCAZ View Post
    I purchased the IRS directly from FFR and it came with an adapter to mate the driveshaft with the Ford yoke however it won't fit. The diameter is about 1/8-3/16" too big. Any suggestions? I just sent an email to Tony at FFR and I'll update this post once I figure this out.
    you must have got the wrong part. In my IRS builds the adapter fit fine.

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  4. #3
    edwardb's Avatar
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    There are a couple different IRS adapters. Plus as I understand the fitment has changed with later center sections. Whatever the reason, you have the wrong adapter and it's not an unusual problem. Factory Five should be able to fix you up with the right one.
    Build 1: Mk3 Roadster #5125. Sold 11/08/2014.
    Build 2: Mk4 Roadster #7750. Sold 04/10/2017. #7750 Build Thread
    Build 3: Mk4 Roadster 20th Anniversary #8674. 03 of 20. 2015 crate Coyote, 2015 IRS. Legal 04/18/2017. #8674 Build Thread
    Build 4: Gen 3 Type 65 Coupe #59. Gen 3 crate Coyote. Delivered 12/2/2017. #59 Coupe Build Thread

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  6. #4
    Member Tampa33Build's Avatar
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    I received the wrong driveshaft adapter and driveshaft with my 33. Emailed Dan at FFR and had the correct ones in a few days. Great service!

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