In our years of racing and testing our products on the track, we’ve learned quite a few things about building a suspension that handles well, but doesn’t break your back (or wallet). In essence, our understanding boils down to four key elements:
Suspension geometry can make or break a suspension design. We’d encourage you to watch our video in the gallery above, but to put it simply, our design allows for a 50% improvement in shock/spring-to-wheel motion ratio. This results in a more responsive and agile shock, while allowing us to run a softer spring. This combination offers race-like agility, with comfortable, daily-driver street manners.
JRi shocks are simply put, the best in the game. The modern mono-tube design ensure responsiveness and comfort. This is one area where we encourage people to spend as much as they’re comfortable with – the return on investment is huge. This kit comes with your choice of three custom setups (noted below).
A suspension is only as good as the freedom of movement that it has. If your suspension is binding, it’s not performing. That why we engineered our own MOD Shaft kit with custom Delrin bushing instead of the more typical bearings. Why? Because the upper control arm only moves a fraction of a complete 360 degrees, we’ve seen upper arms actually dig divots into the bearings. So we went with a broader, central bearing surrounded by bushing to minimize wear and maximize serviceability. Servicing it requires no press or special tools (see video in the gallery).
A good ball joint is absolutely essential. That’s why we replaced the old press-in style with a modern screw in ball joint. This gives you a ton of flexibility in deciding the type of ball joint you’d like to run, and it makes replacing it as easy as a trip to the parts store.
Our upper arms also include a built in 4 degrees of caster and replacement alignment keys, allowing you to dial in the alignment of your classic Mustang while improving baseline feel and highway tracking.
Our Mustang MOD 1 Coilover Kit Includes:
- Our Tubular Upper A-Frame Arms with MOD Shaft Kit
- JRi-MOD coilover shocks with characteristics tuned by MMI
- Hyperco springs
- Billet aluminum shock top mounts
- Hardware kit
The MOD1 STREET coilover package has a stripped down non-adjustable JRi shock. The valving in the shock is tailored toward a touring ride – responsive with a tight compliance to handle the bumps with control. This system best fits the person who wants to get in and drive. This shock package is completely upgradeable to a multi adjustable shock system in the future.
The MOD1 SPORT coilover assembly has a single-adjustable JRi shock which is set up to adjust rebound. The single adjustable shock allows us to be more aggressive. The valving allows the car to handle like a slot car for unsurpassed control while having the ability to back off the dampening quickly to get back a refined drive for the trip home from the track. This shock package is upgradeable to a double adjustable shock in the future.
The MOD1 RACE coilover assembly features a double adjustable JRi shock. This is the shock package used on Mike and Brianne’s Ol Blue 1966 Mustang. The double adjustable JRi shock system allows the driver to independently tune low speed rebound vs. high speed rebound. This lets us tune the small inputs of the steering wheel to get the response desired while tuning the larger bumps out of the equation. The double adjustable JRi shock package is the most advanced shock system you can buy to refine your Mustang to the level you demand.
Completely changed the handling and ride quality of my Mustang, car now handles like a new car. Quality is top notch, simple and easy instructions make this install easy for all skill levels. Couldn’t be more impressed.
Huge improvement in ride quality over the typical coil springs, and those were paired with Penske single adjustables. Biggest change was in turn in and grip, much quicker chassis response and increased cornering speed on the same 225 tire. Highly recommend the MOD 1 kit to any early Mustang owners, from show car ice cream getters through to the track rat.
MOD1 front suspension completely transformed the handling of my 72 Mach 1. Paired with the MOD1 rear suspension kit, the car went from a well handling muscle car, to a track car that can hit corners like a slot car. It brings a smile to my face every time I drive it! Remarkable
this package is unbelievable!! this was my first big project to do on my 66 coupe, by myself, and it could not have gone any better. my steering and handling went from soft and loose to the smoothest cruising and most stable cornering performance ever. Even just for a daily driver like myself, with no track days yet…, this is by far the best thing I have purchased for my car as of yet. Now looking forward to the rest of the goodies to come from these guys!