Fmx 31 spline torque converter help
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Thread: Fmx 31 spline torque converter help

  1. #1
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    Fmx 31 spline torque converter help

    Hello cant find anywhere a fmx tourque converter for my cougar elim 351c Mine is a 31 spline and all that I see are 29 model fmx PHB-P RS Is this a special FMX TO THE ELIMINATOR?

    Ordered one from Summitt and had engine on crane ready to go in and converter would not fit...

    I do see 31 spine c6

    Michael MacLeod 70 cougar elim

  2. #2
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    Re: Fmx 31 spline torque converter help

    You should have 29 splines if it is a Fomoco / Mercury FMX. Best bet is to call the converter manufacturer. If you ordered the correct one for an FMX it should fit your FMX.
    Royce Peterson
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  3. #3
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    Re: Fmx 31 spline torque converter help

    Royce Im going out to make sure its a fmx the shaft is 31 spline It could be c6 Ill let you know best mike

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  5. #4
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    Re: Fmx 31 spline torque converter help

    Easy to tell the difference. FMX has a separate bell housing and is cast iron. C6 has an integral bell housingand is all aluminum.
    Royce Peterson
    CCOA MEMBER #590
    1968 GT-E 427 XR-7 Augusta Green / Saddle It looks all stock Heh - Heh
    1968 XR-7 428CJ Ram Air Red / Black / Black C6
    1910 Model T Ford Touring Red/ / Black
    1914 Model T Ford touring Maroon / Black
    1915 Ford Model "T" Touring.....Black / Black (of course)
    1917 Ford Model T Roadster Green / Black
    XR7-G Registrar
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  6. #5
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    Re: Fmx 31 spline torque converter help

    Some history on the 70 Elim The Marti report said fmx The guy that I bought the car from said fmx I did notice during restoration that there was no rust in center where cast iron should be but just thought it was painted.
    So last night after lots of research I found the easiest way to determine a 1970 ish ford tranny was the count the bolts on the tranny pan.
    So a few min's ago I did!!! Guess what I have a c-6 with 17 bolts I was thinking of doing a swap a year ago glad I didn't Summitt was great they going to pay for Torque converter return and I'm going to order one now Thanks again mike

  7. #6
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    Re: Fmx 31 spline torque converter help

    I am glad you got it figured out.... on a side note ... Summitt has always been very generous to me... they seem to understand things happen and are more then willing to help a customer out as much as they can ..

  8. #7
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    Re: Fmx 31 spline torque converter help

    Put the new converter in the c-6 and the engine in fine now Even got the Sanderson shorty headers in,,, Thanks again.. Best

  9. #8
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    Re: Fmx 31 spline torque converter help

    one step at a time... you will get there.

  10. #9
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    Re: Fmx 31 spline torque converter help

    Quote Originally Posted by captmmac1 View Post
    Hello cant find anywhere a fmx tourque converter for my cougar elim 351c Mine is a 31 spline and all that I see are 29 model fmx PHB-P RS Is this a special FMX TO THE ELIMINATOR?

    Ordered one from Summitt and had engine on crane ready to go in and converter would not fit...
    I think you've got something mixed up. The output shaft is 31 spline just like the C6. But the input shaft is not. All FMX have a common input shaft. So any of the converters that fit FMX will be fine.
    1970 Std Coupe, owned since 1983
    was an M code 351C, FMX, 3:00 open, AC/PS/PB
    Now: 418W, 622HP natural, 950 Holley, Super Victor, solid roller custom cam, AFR205's ported, C6,3.50TL
    Best (old) ET all motor: 11.24 @ 119.5
    Best mph all motor: 120.5
    7.13 @ 96.5 1/8mi, 1.54 60' time

  11. #10
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    Re: Fmx 31 spline torque converter help

    whatever you call the shaft that goes all the way in the torque converter 31 for a fmx it is 29 not a tranny guy for sure thanks mike

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