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Thread: Gen 3 Coyote automatic vs manual - difference just in the flywheel or more?

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    Gen 3 Coyote automatic vs manual - difference just in the flywheel or more?

    Hi everyone,

    Quick question - gen 3 Coyote comes configured for either automatic or manual transmission. I've read that the difference may just be in the flywheel, which I may end up replacing anyhow. Is that correct?

    If so, it helps with my search. It's been challenging finding a pull-out engine that I'm enthusiastic about purchasing, but until now I've been limiting the search to engines coming from Mustangs with stick shift. If the only difference is in flywheel, then it really doesn't matter which I get and I just need to commit to replacing the flywheel.

    Thanks everyone!
    ST

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    Senior Member edwardb's Avatar
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    Even if you find a manual shift takeout, for a Gen 3 Coyote you're going to be replacing the flywheel and clutch anyway. Ford introduced a dual disk clutch setup on the Gen 3. Which isn't compatible with the usual Tremec transmissions. Looks like the picture linked below. The pilot bearing isn't in the end of the crankshaft so the standard input shaft doesn't work. All comes off and you install a new flywheel and pilot bearing.

    Build 1: Mk3 Roadster #5125. Sold 11/08/2014. Build 2: Mk4 Roadster #7750. Sold 04/10/2017. Build Thread
    Build 3: Mk4 Roadster 20th Anniversary #8674. Sold 09/07/2020. Build Thread and Video. Build 4: Gen 3 Type 65 Coupe #59. Gen 3 Coyote. Legal 03/04/2020. Build Thread and Video
    Build 5: 35 Hot Rod Truck #138. LS3 and 4L65E auto. Rcvd 01/05/2021. Legal 04/20/2023. Build Thread. Sold 11/9/2023.

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    Thanks. So just to be 100% certain I'm understanding, you, you're saying you agree with my assessment that it doesn't matter if I pull it from an automatic or manual because the only difference on the engine is the flywheel and I'm changing that anyway? Thanks!

  4. #4
    Senior Member edwardb's Avatar
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    Quote Originally Posted by stuchman1 View Post
    Thanks. So just to be 100% certain I'm understanding, you, you're saying you agree with my assessment that it doesn't matter if I pull it from an automatic or manual because the only difference on the engine is the flywheel and I'm changing that anyway? Thanks!
    Correct. As far as the flywheel on a stock manual shift Gen3, you will have to replace it. So whether flexplate (automatic) or flywheel (manual) either would have to be replaced. Full disclosure: I've done two Coyote builds. A Gen2 and a Gen3. Both were crate motors and sold by Ford Performance as manual shift versions. Other than the flex plate, I'm 99% certain there are no other differences in the Coyote whether automatic or manual. But I can't cite personal experience. Happy hunting.
    Build 1: Mk3 Roadster #5125. Sold 11/08/2014. Build 2: Mk4 Roadster #7750. Sold 04/10/2017. Build Thread
    Build 3: Mk4 Roadster 20th Anniversary #8674. Sold 09/07/2020. Build Thread and Video. Build 4: Gen 3 Type 65 Coupe #59. Gen 3 Coyote. Legal 03/04/2020. Build Thread and Video
    Build 5: 35 Hot Rod Truck #138. LS3 and 4L65E auto. Rcvd 01/05/2021. Legal 04/20/2023. Build Thread. Sold 11/9/2023.

  5. #5
    Senior Member rich grsc's Avatar
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    The engines would be the same. The ECU's would be programmed slightly different
    Mrk III, 331 stroker, Borla stack injection, T5, 3:55 IRS, Power steering and brakes. Kleiner body & paint

  6. #6
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    I bought a whole low-mileage wrecked Mustang of Copart. Kept what I needed, and parted out the rest. Final cost of the engine and transmission was about $2K. Took some work.
    MK IV, Gen2 Coyote with MT82, IRS

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    Super helpful, as always. Thank you all.

  8. #8
    Senior Member PNWTim's Avatar
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    I believe the real difference is in the control pack? They are definitely segregated as far as automatic or manual as I understand it. So if you were to buy a take out with all the electronics I am thinking you would need to acquire a manual control pack if you were going that direction.
    Coupe complete kit ordered: 9/26/24. Gen 4 Coyote. T-56. IRS w/3.73. Wilwoods. PS. HVAC. Side windows.

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