1965-1973 Mustang Street Or Track Bilstein Front Coil Over System

Having had excellent results and customer feedback from our conventional style tubular control arms and Bilstein shock absorbers, we wanted to take things to the next level and offer even more control to our customers. Using the same race winning geometry as on our conventional tubular control arms we specified a couple of different Bilstein coil over shocks and designed our coil over system. Used by OEM’s such as Porsche and Audi, Bilstein also has a long street use and racing history. This is the perfect shock for such an advanced coil over system for your Mustang and classic Ford. A quick benefits list of our coil over system compared to a conventional spring/shock arrangement would be:

Easy ride height adjustment.  Our shocks feature a threaded sleeve, simply rotate the adjuster with the supplied wrench to raise, lower or cross weight the car.  No cutting springs, no guessing.
50% better motion ratio allows use of lighter springs and more shock motion for improved control.  An improved motion ratio also has the side benefit that the forces directed through the spring and into the chassis will be lower.  Less tower flex and chance of cracking.
Although we have chosen what we feel and have calculated to be a great combo, coil over springs can be had in 25-50lb increments which is a vast improvement over the conventional spring offerings.
We've designed our system to feature super easy spring/shock removal.  The entire spring/shock assembly is held on by 1 bolt on the top and 1 bolt on the bottom.  No spring compressors, no swearing.
Heim bearing shock ends further reduce bind found in stock setup. This transmits road forces directly to the spring & shock allowing it to do what its designed to do and get the tire back on the road quicker for more control and better handling.  This can be compared to the benefits found in using roller spring perches on a conventional system.  Other systems on the market that use rubber or polyurethane shock bushings will bind during regular suspension travel and when the strut rod is used to move the lower control arm to set caster.

Not satisfied with just picking an off the shelf shock that fits the space, we worked for a full year computing motion ratios, wheel rates, sprung and un-sprung weights, critical damping and a massive list of other variables to design our own proprietary Street, Sport and Race shock & spring combinations specific to the 65-73 Mustang and other vintage Fords. We do NOT use a standard 'off the shelf shock' that simply fits in the space and 'sort of feels right'. Each shock and spring package is designed based on the vehicles weight and intended use. Alongside the year of math, shock curves and shock dyno time we drove many, many street miles and 100's of laps on our favorite racetracks for a real world 'seat of the pants' validation of each combination from us and a selection of test customers.

The 3 shock valving & spring combinations available for our coil over system are:

Street We feel that this combination rides as close to a modern production car as you are likely to get from your classic. That was our goal and we feel we've met that. In fact even our shock tuning engineer was blown away at how nice our 1966 Mustang coupe test car drove down a bumpy, twisting Michigan road! Choose this system if you want a smooth yet responsive ride from your classic that you can drive for hours and hours without feeling beaten up. Due to the lighter spring rate used, this is also our recommended setup for dual purpose street or drag car.

Sport We worked really hard on this package to design it for all those dual purpose street or open track cars out there. This package gives a smooth, crisp, controlled ride on the street but can also handle bouncing off the curbs and slick tires at the road course. Choose this system if you like carving around bends, on/off ramps and/or open tracking with NO need to switch shocks or click gimmicky knobs.

Race For our race setup, the shock gets switched for one with a Schrader valve to adjust/set nitrogen pressure. With a shock inflator gauge like #LON50473 and a tank of nitrogen from your local welding supply store, this enables the customer to change gas pressure beneath the dividing piston. Choose this option for a dedicated track car. Our hired 'butt dyno' driver lapped 3 seconds quicker in his 1965 coupe when compared to times using his highly modified conventional front suspension setup. The stop watch doesn't lie. This valving can also be built into a Bilstein shock without the Schrader valve should you not wish to have the option to tune gas pressure but still want the race setup.

All of the shocks used in our coil over system will give many, many years of service. When the time comes, the shocks are completely rebuildable/serviceable by us or any worldwide Bilstein rebuilder. You can rest assured that your investment in this system is one that you can easily maintain and enjoy for many years.