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  •  » Install Convert Seat Platform into Coupe

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    2/25/2025 9:10 AM  #1

    Todd5.0
    Active Member

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    From: Portland, Oregon
    Registered: 3/09/2022
    Posts: 8

    Install Convert Seat Platform into Coupe



    How much work is it to cut this 65-66 convertible seat platform to fit a 66 coupe ?  I want the rigidity of this seat platform.  thanks

    66 Mustang coupe 289 auto
     

    2/25/2025 9:38 AM  #2

    GPatrick
    Senior 24-7 FYI Addict

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    Registered: 4/01/2013
    Posts: 1,117

    Re: Install Convert Seat Platform into Coupe

    I don't believe the platform alone will do much.  It is designed to install with convertible inner rockers and also works in conjunction with these https://www.cjponyparts.com/reinforcement-pan-convertible-1965-1970/p/M120-V/?gad_source=1&gclid=Cj0KCQiA8fW9BhC8ARIsACwHqYpOglZ8Fxqtn3gzJgZj5CfuJ1RHJMfBgBoxmqRh-HdwGodbO4tBlbQaAkUgEALw_wcB#217=977&year=1970 

    You would also add the convertible plate that bolts the two supports together.

    The convertible platform also raises your seats up which can create some clearance issues.

    So, you can install one but I'm not sure what you'd gain.  A good set of weld-in subframe connectors and torque boxes on both sides might be a better choice.  

    https://www.allfordmustangs.com/threads/66-seat-platform-replacement.1082317/

     

    2/25/2025 11:23 AM  #3

    Todd5.0
    Active Member

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    From: Portland, Oregon
    Registered: 3/09/2022
    Posts: 8

    Re: Install Convert Seat Platform into Coupe

    GPatrick, you have convinced  me to stay away from this platform.  Yes I will be installing torque boxes and the Tinman sub frame connectors. Appreciate your advice.

    Todd5.0

    66 Mustang coupe 289 auto
       •Thread Starter
     

    2/25/2025 12:51 PM  #4

    rpm
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    From: Bakersfield, Ca
    Registered: 9/17/2013
    Posts: 3,680

    Re: Install Convert Seat Platform into Coupe

    The problem for me being over 6'-2" is the convertible one piece seat riser is one inch higher than the stock individual seat risers. When I did mine I believe a full width for non convertibles was available at NPD. I bought a one piece seat riser, and cut and spliced the center hump into each stock seat riser.





    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

    2/25/2025 2:06 PM  #5

    Todd5.0
    Active Member

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    From: Portland, Oregon
    Registered: 3/09/2022
    Posts: 8

    Re: Install Convert Seat Platform into Coupe

    RPM,
       that was a project.  Looks great.  I am also 6'2" and will be installing 71-73 Mustang high back bucket seats.  I did not know that the convertible seat platform is taller than the stock platform.  Definitely do not want to have my head in the headliner.  

    66 Mustang coupe 289 auto
       •Thread Starter
     

    2/25/2025 7:06 PM  #6

    Nos681
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    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,358

    Re: Install Convert Seat Platform into Coupe

    rpm wrote:

    The problem for me being over 6'-2" is the convertible one piece seat riser is one inch higher than the stock individual seat risers. When I did mine I believe a full width for non convertibles was available at NPD. I bought a one piece seat riser, and cut and spliced the center hump into each stock seat riser.





     
    RPM, did you shorten the stock seat riser too?

     

    2/26/2025 7:46 PM  #7

    rpm
    Senior 24-7 FYI Addict

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    From: Bakersfield, Ca
    Registered: 9/17/2013
    Posts: 3,680

    Re: Install Convert Seat Platform into Coupe

    I did not Dan. I did however move them back ¾ inch. I followed the advice of a guy who did lower the seat pans, who recommends not to.

    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

     

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