Rob Kinnan
Brand Manager, Mustang Monthly
August 10, 2015
Photos By: Jason Lewis

If you’re following our series of videos on Project Large Marge, our 1973 Mustang coupe, you may remember the installation of the Chris Alston’s Total Control Products coil-over front conversion kit. That covered the front suspension of our big girl, and this time we address the rear using more Total Control Products (TCP) parts.

The only problem is that at the time we did the installation, TCP didn’t have a system for the ’71-’73 Mustangs. After some discussion with the tech guys there, we thought their existing system for the earlier cars might work in our ’73 with the addition of an adapter or two. They had never tried it, so they sent us the parts and said “give it a shot.” So we did and it turned out that it works so good that their kits now cover all Mustangs from 1964 to 1973, and Cougars from ’67-’70.

The g-Bar system consists of three different combinations of upper and lower link bars with your choice of coil-over or air-spring shocks, and these options create six different variations to better suit your particular performance application. You can use the system with one of TCP’s vehicle-specific FAB9 housings or your existing housing—we used the 9-inch that came with the car. As you’ll see in the video, it even comes with a cool jig that positions the housing mounts for welding, which ensures you get them in the right place for proper geometry and no guesses. Finally, you get to meet our helper Pinto. High-five Pinto!