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Thread: Fox Body Mustang Frame Rail Repair

  1. #1

    Fox Body Mustang Frame Rail Repair

    I see alot of nice looking fox body Mustangs with the frame rails rotting. Anyone ever fix frame rails? You would think someone would make a frame rail repair kit. Shame to see alot of nice foxbodies get parted out instead of fixed.

  2. #2
    NEWB daviac5000's Avatar
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    Don,

    Mine has that exact problem. There are some options out there.

    LMR sells the rails - https://lmr.com/products/Mustang-Frame-Rails and ScottRod has a kit also if you don't need the entire rail - http://scottrodfab.com/shop/fox-body...epair-kit.html

    If you want to really make it a project NPD sells the apron and frame rail fairly cheap - https://www.npdlink.com/product/apro...0000%26year%3D

    Unfortunately, I keep trying to find the time to fix mine but it hasn't made it to the top of the priority list.

    Dave

  3. #3
    13 SECOND FRANK turbo83coupe's Avatar
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    As Dave posted there are aftermarket "kits" that have the repair sections. Idk that they are as nice as getting an entire clip or section of a clip from a junkyard. The proper way to do it is drill all the spotwelds out down the apron and frame rail section from top to bottom back by the firewall. It then should slide out. Theres "how to" articles on four eyed pride i do believe. Iv also saw people repair it by cutting the rusted section out and welding plate or other pieces of frame rail back in.
    -Frank-
    1983 TurboCoupe-- T3, 3" exhaust, front mount, 8.8, LA3, cam -- 13.44@98mph
    1973 F250 highboy-- 300/np435/np205 60f/60r 38's
    1986 GT-- HCI
    2011 WRX
    1999 B2500 7.5/9 drop

  4. #4
    At least there are options out there. It just seems too many nice Mustangs get junked because of frame rails.

  5. #5
    Senior Member Ares's Avatar
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    My '04 went on both sides. With passenger side the worst. Cut it out and rebuilt. Also used 1/8" plate the length of both rails to strengthen and clean up all the factory holes.
    Ed...
    2004 Dodge Ram 1500 4x4, 5.7 Hemi, 8" Lift, 35" tires
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  6. #6
    Quote Originally Posted by Ares View Post
    My '04 went on both sides. With passenger side the worst. Cut it out and rebuilt. Also used 1/8" plate the length of both rails to strengthen and clean up all the factory holes.
    Surprisingly, my original paint 86 GT is still super clean underneath. Frame rails are mint. I thought about looking into a Mustang that needs frame rails repaired hoping it would not be that bad.

  7. #7
    Senior Member Ares's Avatar
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    Quote Originally Posted by Donstang86 View Post
    Surprisingly, my original paint 86 GT is still super clean underneath. Frame rails are mint. I thought about looking into a Mustang that needs frame rails repaired hoping it would not be that bad.

    The '84 GT350 I have is rock solid up front also. Floors are worst thing on the car since it is a vert. One day I will find time to work on it.
    Ed...
    2004 Dodge Ram 1500 4x4, 5.7 Hemi, 8" Lift, 35" tires
    2004 Mustang GT - Comp Orange/5speed Best 1/4 11.94@113.64, 1/8 7.59@89.48, 1.57 60' - Best 60' 1.51, just a NA 2v

  8. #8
    No Traction due to Paxton PaxtonShelby's Avatar
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    Quote Originally Posted by Ares View Post
    The '84 GT350 I have is rock solid up front also. Floors are worst thing on the car since it is a vert. One day I will find time to work on it.
    Is yours a 5.0 or a turbo 4? I test drove a used 5.0 84 350 in college (around 1989) and it was beat to hell. Still a neat car though!
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  9. #9
    Nothing clever to say.... jaa55's Avatar
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    Quote Originally Posted by turbo83coupe View Post
    As Dave posted there are aftermarket "kits" that have the repair sections. Idk that they are as nice as getting an entire clip or section of a clip from a junkyard. The proper way to do it is drill all the spotwelds out down the apron and frame rail section from top to bottom back by the firewall. It then should slide out. Theres "how to" articles on four eyed pride i do believe. Iv also saw people repair it by cutting the rusted section out and welding plate or other pieces of frame rail back in.
    Hey frank you still around?!
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  10. #10
    13 SECOND FRANK turbo83coupe's Avatar
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    Quote Originally Posted by jaa55 View Post
    Hey frank you still around?!
    Hell yeah! How you been? Looks well from what you posted!
    -Frank-
    1983 TurboCoupe-- T3, 3" exhaust, front mount, 8.8, LA3, cam -- 13.44@98mph
    1973 F250 highboy-- 300/np435/np205 60f/60r 38's
    1986 GT-- HCI
    2011 WRX
    1999 B2500 7.5/9 drop

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