FORD
TWIN I-BEAM FRONT SUSPENSION AND STEERING.
A novel twin I-beam
front suspension system is disclosed having a first and a second
radius arm, the rearward end of each radius arm being adapted to
cooperate with a bushing to connect to the vehicle frame. The
radius arm bushing static rate on one side of the suspension
differs from the radius arm bushing static rate on the other
side of the suspension so as to balance the radius arm
longitudinal deflections on the two sides of the vehicle. In the
preferred embodiment, a silent block bushing replaces the
traditional radius arm bushing to reduce pan complexity and to
provide increased radius arm bushing life. Radius arm systems
are also disclosed which permit quick, easy and accurate
adjustment of the front wheel caster angle. A parallelogram
steering linkage decouples the two front wheels from one another
to provide a toe curve for each front tire that is independent
of the vertical displacement of the other front tire.
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