Jim Smart
January 21, 2014

When Ford was developing the Fox Mustang in the 1970s, its objective was an aerodynamic handler that would enjoy a good relationship with both drive and the road. Ford did a good job of connecting driver and pavement with McPherson struts in front, coil springs on all fours, and a cool four-link rear suspension. Like any factory suspension system, there is always room for improvement. Koni, a legendary name in Mustang handling, has it all figured out with its adjustable Sport shocks and struts for '79-'93 Mustangs.

Installation is straightforward using garage hand tools, although you must use extraordinary care when dealing with coil springs, which has a tremendous amount of contained energy. Rent or purchase a good coil spring compressor for strut replacement and always stay out of the spring's path. Wear face and eye protection.

1. Koni Sport Dampers Shocks and Struts
2. There are a number of ways to compress coil springs. But, whatever you do, be safe. This is one approach used at JME Enterprises where spring links are installed with the car o the floor, allowing strut removal and replacement with the vehicle on the ground. You can also rent or purchase a spring compressor for this purpose.
3. With the coil spring safely compressed, disconnect the top strut mount using a large common screwdriver and 21mm box end wrench.
4. Struts are attached to the brake spindle with two fasteners. You will need a 24mm box end and a 21mm socket for this task. Again, ascertain spring security while you're doing this.
5. The new Koni Sport strut is secured to a new Baer disc brake and spindle using the same hardware along with a 24mm box and 21mm socket.
6. Because we're going with Maximum Motorsports caster/camber plates, we need this sleeve on top.
7. Maximum Motorsports adjustable caster/camber plates are installed on top prior to the Koni adjustable strut installation.
8.. With the Koni adjustable Sport strut installed, adjustment is easy and can be dialed in for the type of driving you will be doing.
9. Rear shock replacement is easy. Keep vehicle weight on the coil springs or use a spring compressor to stabilize spring tension. Disconnect shocks on top like this before disconnecting the bottom.
10a. Install the rear shocks top first as shown, then the bottoms.
10b. It is a good practice to first turn the shock upside down and fully compress three to five times to bleed any air, then install.
11. Koni rear Sport dampers are fully adjustable and easy to access on all Fox body styles. Adjust yours to expected driving conditions.