COMPLETE PERFORMANCE SYSTEMS
GR40 CHASSIS SYSTEMS (1979-2004)
Our chassis system was designed to give you unprecedented performance. Whether you drive your Thunderbird daily, take it to the strip or road race, our chassis system is guaranteed to yield significant performance improvements.
The addition of Griggs Coil Over Konis and rear lower control arms makes this kit pack a big punch. Fully adjustable ride height, low un-sprung weight and ride quality that’s unobtainable with non-coilovers. Use our chassis builders below to build your perfect chassis, whether or not you have bigger and better plans in the future – the performance gains are noticeable.
- Minimized deflection of suspension arms and links, for correct and accurate geometry
- Increased Anti-Dive & Tire Contact Patch
- Correct Camber Gain and Roll Center
- Use of Panhard Bar or Watts Link
- Use of Torque Arm design
Modern Day Components
- Use of modern spindle design allowing for a wide selection of front brake kits & 5-lug wheels
- Use of eyelet design coil-over shock absorbers with adjustable ride height
- Utilization of power rack and pinion steering
- Allows for use of factory design ABS
- Removal of spring towers, increasing room in engine bay and "show room" cleanliness
- Elimination of heavy leaf springs
- Installation of lighter and less expensive 8.8 inch rear axle assembly
- Race winning technology, street capable comfort simultaneously increasing driver confidence
- Utilize modern day radials & slicks
- Use our mini-tub kit to fit wide rear tires (335+)
WHAT IS YOUR VEHICLE USAGE PRIORITY?
It is IMPERATIVE to identify your vehicle usage priority first, as this will change the components we prescribe to you. Once decided, our Virtual Consultant in the section below will help guide you to your ideal configuration.
Driven daily, you prioritize reliability and a comfortable ride - but still desire performance. Our chassis system delivers it all, improving tire wear and ease of control - simultaneously increasing driver confidence.
If you want a canyon cruiser, build a Weekend Toy. If you want to go to the Drag strip once in a while, build a Street/Strip car.
If you want a street toy – or what some call a “Sunday Driver” – a car capable of delivering high doses of horsepower to the ground, and performing incredibly on canyon roads - this is for you.
Those who are performance oriented may consider using this as their daily driver, with a minimal sacrifice to comfort.
STREET / STRIP
Where the car is usually driven daily, but straight line launches and an occasional trip to the drag strip is the primary fun.
Prioritizing straight line performance, this configuration is not as ideal for Autocross and corner-laden events.
DRAG RACING (DEDICATED)
For serious single purpose drag race cars. Weight savings is a priority without sacrificing strength and safety and controllability.
Griggs Racing chassis systems provide immensely increased launch and high speed stability over any other kind of system due to the design geometry.
If you are a cone head, you need a car that has crisp and precise handling performance. Having a Go-Kart like response and accuracy to consistently clear cones within fractions of an inch, while at the same time remaining comfortably compliant, as most autocross cars remain street legal.
OPEN TRACK / TRACK DAY
If your your primary vehicle usage is to be high performance handling on road courses or open track days. With this configuration you may also drive your car on the street, with a slight sacrifice to comfort, this configuration will also perform well in Autocross events.
ROAD RACE / COMPETITION
If you are a serious about racing the clock or other competitors wheel to wheel, this is what you need. Our full line of products & services are here to prepare your Thunderbird for a National Championship, thus our proven Motto: “Champions Made Here”
If sliding your car around in big smokie burnouts, achieving maximum steering angle for style points, in front of a crowd and with ease of control, this is for you.
To see this configuration in action, look no further than the "Drift Patrol" Mustang.
BUILD YOUR CHASSIS
Select one of the options below, our Virtual Consultant will guide you step-by-step to your ideal chassis system.
Our Virtual Consultant presents a guided experience, only showing items compatible with your choices.
BUILD THE REST
Once your chassis is geometrically correct, you can maximize the other systems of your vehicle.
Our Virtual Consult will present you with tried and true configurations, resulting in winning performance.