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www.factoryfive.com 508-291-3443
Shocks/Springs
Using the Mustang rear coil springs and shocks gives a comfortable ride. For a slightly stiffer
suspension, replace the stock rear shocks with aftermarket units. We have found that KYB makes an
inexpensive good replacement that roughly 20% stiffer than stock.
For the well balanced fun to drive car, the 3-link rear suspension combined with the Factory Five custom
valved Koni rear coil-over shocks work the best.
Factory Five offers a couple different shock/spring packages.
An affordable rear coil-over package which includes shocks and 350 lb/in springs.
A road racing oriented 3-Link and front coil-over package, which includes stiffer valved shocks and 750
lb/in front springs and 500 lb/in rear springs.
High Performance Manual Braking Systems
The braking systems recommended below are designed for those searching for higher performance
braking capabilities. These are systems that have been used successfully by our customers and us. Each
component below has been selected to optimize the capabilities of the system. If an attempt is made to
utilize some of the specified components, but not all of them in combination, then braking abilities may
not be satisfactory.
For all manual braking setups use the brake pedal from a 1984 4-cylinder Mustang (Ford Part
#08BZ2455A), this pedal can also be made by modifying the V8 Mustang pedal as specified in
the FFR Manual (this modification should be done by a professional shop).
Some of the setups may not clear some wheel sizes and designs.
For all rear disc brake setups, use a proportioning valve on the front brakes.
We recommend using Porterfield R-4, Carbotech XP8 or 9, or Hawk Blue brake pads. Though
costly, you will find a significant difference in your cars ability to stop. If these pads are out of
your price range, next in line would be Performance Friction Z-Compound pads available at
Autozone.
4-lug (4.25” pattern)
Master Cylinder – FFR
15
/
16
” Master cylinder/Proportioning valve (FFR#14739
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