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This is an upgrade kit for the Mazda Protege and Mazda 3 rear
sway bar bushings with the setup shown below.
The upgrade kit can be purchased
for either the stock sway bar or various aftermarket bar diameters. The kit
includes two Steel brackets (Aluminum brackets are shown in the photographs), two Energy Suspension Polyurethane Bushing Kits, and
the four
bolts needed for installation.
The kit is installed in the same manner as the stock bushings. Installation takes about
30 minutes with a floor jack and a socket set.
The stock mount design is flawed and quickly wears the undersized
bushings. The stock bushings have been known to wear to the point of making
noise within a year of installation. The Cheetah kit should last the life of the vehicle.
In the unlikely event that a bushing from this kit does wear out, both bushing can be
replaced for only about $10 total.
The photo above shows a stock mount cut in half
to display how thin the bushing is around the rear bar. The wall thickness is
only 1/8" and very quickly wallows out the outer edges. The
Polyurethane bushings included in this kit are not only a much stiffer material
than stock, but will
hold up much longer than the stock rubber bushings which degrade rather quickly
from temperature changes. The longer and thicker 5/16" wall around the bar
in the Cheetah kit is more than double
that of the stock mounts. This greatly stiffens the rear suspension in the same
fashion that a larger bar would accomplish. 
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