swapping AOD to a C4... 70 mav... help??

Discussion in 'Transmissions' started by Richard Kuss, Dec 7, 2011.

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  1. Ryan

    Ryan Ford Addict

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    I think you are measuring the bolts in a circumference but the measurements they refer to are diaganal, across the diameter of the bolt circle.

    I think we already confirmed it is a 91 5.0 HO motor with a 50 oz. balance.

    Before going to far and ordering stuff check the snout of the convertor like Frank said. Measure the outside diameter of the solid steel protrusion coming out of the center of the convertor towards the motor. then measure the inside diameter on the hole in the back of the crankshaft. The convertor snout should fit inside the hole in the crank.

    If the motor is still in and you want to measure before pulling stuff apart tehn go to the parts store and ask to see a pilot bushing for a 91 Mustang 5-speed. the pilot bushing goes inside the rear hole of the crankshaft. You can measure it and if it is the same size as the convertor snout then you are good to go.
     
    Ryan, Dec 9, 2011
    #16
  2. 71gold

    71gold Frank Cooper Supporting Member

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    also check how long the snouts are...
    remember...the 157 and 164 tooth flexplates are different more so than just the amount of teeth...:yup:
     
    Last edited: Dec 9, 2011
    71gold, Dec 9, 2011
    #17
  3. Richard Kuss

    Richard Kuss Kusstum Fabrication

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    kk this is all good information.. so the starter napa sold me is for a 157t flywheel.. but he said its for a 77mustang II... lol correct me if im wrong but wasnt the c4's in mustang II's different, as in smaller then a regular c4?
     
    Richard Kuss, Dec 10, 2011
    #18
  4. Richard Kuss

    Richard Kuss Kusstum Fabrication

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    Richard Kuss, Dec 10, 2011
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  5. Richard Kuss

    Richard Kuss Kusstum Fabrication

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    Richard Kuss, Dec 10, 2011
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  6. 71gold

    71gold Frank Cooper Supporting Member

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    71gold, Dec 10, 2011
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  7. Richard Kuss

    Richard Kuss Kusstum Fabrication

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    Well... any suggestions then....
     
    Richard Kuss, Dec 10, 2011
    #22
  8. rthomas771

    rthomas771 Member

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    rthomas771, Dec 10, 2011
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  9. Richard Kuss

    Richard Kuss Kusstum Fabrication

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    lol....wow im an idiot.. i searched the wrong word, having a dumbass moment....
     
    Richard Kuss, Dec 11, 2011
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  10. Ryan

    Ryan Ford Addict

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    Ya my bad, I said Fywheel too :biglaugh: There arent many choices in 50oz balance flaxplates for c4. I still think the two I linked earlier will be fine as long as you get the right size.
     
    Ryan, Dec 11, 2011
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  11. Richard Kuss

    Richard Kuss Kusstum Fabrication

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    Richard Kuss, Dec 11, 2011
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  12. 71gold

    71gold Frank Cooper Supporting Member

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    let's recap...
    you have a...'91 5.O with an C-4 from a 351...correct?
    the 5.O is a 50 Oz. motor?
    is the C-4 a 157 or 164 tooth flexplate?

    ...:bouncy:...
     
    71gold, Dec 11, 2011
    #27
  13. Richard Kuss

    Richard Kuss Kusstum Fabrication

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    Richard Kuss, Dec 11, 2011
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  14. 71gold

    71gold Frank Cooper Supporting Member

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    71gold, Dec 12, 2011
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  15. rthomas771

    rthomas771 Member

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    rthomas771, Dec 12, 2011
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