The RRS bolt-in coil-over suspension kits offer superior performance and functionality advantage over competitors' products (view comparison) and are of significant importance to owners of early Fords who want to fit big diameter wheels and low-profile tyres into their cars.
 
RRS Bolt-in Coil-Over Front Suspension Kits
The high-performance design of the RRS bolt-in coil over strut places less stress on the chassis because the strut is mounted at the centre of the steering knuckle rather than on top of the upper control arm like the original double wishbone factory position. Both ride height and camber can be easily adjusted to suit driver preference.

Challenge the road with improved suspension performance
The RRS strut kit comes with your choice of RRS upgrade brake packages ranging from single-piston to huge 6-piston calliper kits. All mounting hardware is included and is easily installed without the need to cut or weld your precious classic Ford.
 
The RRS coil-overs are bolt-in. The coil-over system easily bolts into classic Ford Falcon, Fairlane, Mustang, Cougar, Comet, Maverick, Cyclone, Montego, and Torino.
 
Building a daily, a cruiser, or a racer, you want it to outperform all other classics, stock or modified. The RRS coil-overs improve the castor and Ackerman to respond faster, creating a jacking effect, which will optimise the suspension performance.
Key Features
5-year unlimited km warranty
Height adjustment - 3" (76mm) while maintaining a full range of travel
Internationally recognised engineering and testing
Off-set gain gives you increased wheel & tyre choices 14" to 20" rims
Set up to handle modern radial tyres
No CUTTING or WELDING necessary*
Lightweight construction
 
* OPTIONAL - RRS has a shock tower notching kit available to provide an extra 10 – 10 ½ inches of extra space in the engine bay for big block, Coyote, Boss 429, Barra, Dart Block, 392 stroker engine, etc.
The RRS Advantage
Improved tyre contact for better grip
Improved Ackerman for improved handling
Faster reaction time for increased recovery
Reduced motion ratio for improved agility
Reduced body roll producing greater stability
Negative camber gain increasing cornering power
Reduces unsprung weight the key to improved handling
Improved slip angle for higher apex speed
Axis of inclination gain for modern sports car performance
In-Depth RRS Front Coil-Over Suspension Benefits
RRS is the only suspension system on the market today that is designed to extract the maximum performance out of today's advanced tyre compounds and construction.
In comparison the original Ford suspension inherently has a camber shift from negative camber to positive camber at bump stop. While the RRS system gives a optimum 0° camber to 2 ¼ ° negative camber at maximum compression or more.
The RRS system produces a lower roll centre while creating a jacking effect to reduce body roll enabling the suspension to utilize a lighter sway bar.
The advantage of the RRS system is that it produces full tyre to road contact in hard cornering and increased stability while decreasing unsprung weight by 3 to 5 kg per side producing quicker suspension reaction time due to the superior spring and shock absorber design.
Inferior competitor designs such as Mustang II continue to use lower control arm mounted coil over and converted struts which are basically a tweaked version of the original 1960's Ford design that was developed to suit cross-ply tyres or worse will cause incorrect chassis loading and mismatched components.
RRS modular design strut conversion uses a bearing hub rather than a stub axle providing the most advanced steering geometry, ride control (reaction time) durability and serviceability in the market.
The RRS forged steel hub increases the load bearing capacity by 20% over the original factory stub axle. Perfect for wide big diameter rims & tyres.
The RRS adjustable gas shock features a patented check valve which minimizes foaming to keep shock performance fade free under all driving conditions.
Retains standard Ford stud pattern and stud size & wheel track.
RRS discs have a different offset to a standard Ford to allow bigger rotors within standard rims while maintaining factory wheel track width.
Caliper mounting is designed to allow a greater adaptive design range and ease of fitment of high performance RRS calipers.
RRS detailed instructions make installation a breeze.
Lightweight-less weight on the nose means better weight transfer and proven, better 60 foot times at the drags.
Reduces track scrub, a typical early Mustang or Falcon with standard suspension will vary track by up to 3" through its range of travel . The RRS strut decreases this to less than ½".
Torque Specification for RRS Front End
Wheel nuts 100 – 125nm
Tie rod ends and ball joint 40 – 60nm
Steering knuckle to Strut tube, attaching bolts in two stages:
Stage 1 = 85nm
Stage 2 = 100nm
Front calliper to the steering knuckle, attaching bolts 80 – 90nm plus 40° – 50°
Wheel bearing hub to the steering knuckle, attaching bolts. This is done in three stages:
Stage 1 = 85nm
Stage 2 = 100nm
Stage 3 = 100nm then turn through 90°
Top hat attaching bolts 35nm
Strut insert, attaching nut 125nm
Recommended wheel alignment specifications for your Ford:
Caster positive 4.5° plus or minus 1°
Camber negative .5° to negative .75°
Toe in 2mm to 3mm
Toe out on turns
Outer 17.75°
Inner 20°