Torque Box 1-Piece Driver Side Coupe/Fastback 1965-1970

CJ's Part Number: M117L

Regular Price: $52.99

Special Price: $45.04

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Torque Box 1-Piece Driver Side Coupe/Fastback 1965-1970
Torque Box 1-Piece Driver Side Coupe/Fastback 1965-1970 Play Torque Box 1-Piece Driver Side Coupe/Fastback 1965-1970 Video 1

Product Description

Driver Side 1-Piece Torque Box for 1965-1970 Mustang Coupes and Fastbacks.

An old or weak torque box can mean body flex or frame twisting which can do serious damage to your Mustang. If you need to replace the entire torque box, we recommend this one-piece style reproduction. Made from high-quality 14-gauge steel.

*Will fit 71-73 Mustangs with some modifications.

Similar Mustang Parts

similar Mustang parts More Frame Rails & Torque Boxes  

Installation Instructions


Difficulty: Moderate

Mustang Applications

This product will fit the following Ford Mustang years:

Product Reviews

Write a review
Torque Box 1-Piece Driver Side Coupe/Fastback 1965-1970 is rated 4.4 out of 5 by 5.
Rated 5 out of 5 by from Thick Metal and Strong These Torque boxes are nice and thick. I'm replacing just the driver side due to rust. Removed the old torque box, cleaned up all the metal. For a 68 coupe, they dropped right in. I was suprised since they are the less expensive one.
Date published: 2015-01-07
Rated 5 out of 5 by from Wont beat it for the price Nice thick metal. Fit was great, went right into place. I drilled out the spot welds and installed it in two pieces to make my life easier.
Date published: 2015-02-11
Rated 4 out of 5 by from Torque box I have used this torque box twice and worth the money. Good fittment and quality
Date published: 2015-01-13
Rated 5 out of 5 by from don't be intimidated Installation was easier than I thought. Had to do a little trimming. Had the first side fitted up welded in in about 3 hours. Some people say you have to take them apart but that is not so.
Date published: 2015-07-10
Rated 3 out of 5 by from Lots of modifying Over all the structure and sharpness of the box is great but you will have to cut and bend a lot for it to work correctly. Good luck
Date published: 2015-08-05
  • 2015-11-29T08:30CST
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Product Questions


Hi, I was wondering, would you happen to know how close these are to '63 Falcon convertible boxes?

Asked by: Oddbawl
No idea. Unless that fitment is listed in the product description, we haven't tested it and the Falcon isn't a vehicle we sell aftermarket or OEM parts for.
Answered by: CJ Pony Parts
Date published: 2015-05-26

watching videos and reading forums it seems like these 1 piece torque boxes need to be disasembled to be able to get them into place on the mustangs (67 is what I have) is this true? if you can get them into  place without taking them apart, how?

Asked by: big daddy
We've not heard any reports of customers needing to take them apart. Most customers report that they just drop right in.
Answered by: CJ Pony Parts
Date published: 2015-05-21
  • 2015-11-29T08:35CST
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Product Video

Torque Box 1-Piece Driver Side Coupe/Fastback 1965-1970 Video Transcript
By Bill Tumas: We're here with a replacement front torque box for your 64-1970 Mustang Coupe or Fastback. Ford realized the benefit of the front torque boxes in convertibles and use them since 1965. By 1967, they had a driver side torque box in the Mustang, by 1968 all three body styles benefited from both front torque boxes. Even though your 65-66 Coupe never came factory with torque boxes, we strongly suggest adding them to your restoration to increase the strength of your front end. Our torque boxes are made of heavy gauge steel and they come pre-welded so they're ready to install. Here you can see the torque box installed on this 1965 Mustang Coupe; it's going to weld between your frame rail and your rocker to increase the strength of the front end of your car. Whether or not your Mustang came with torque boxes from the factory, when you're doing your restoration, we highly suggest adding a set to your build.