The 1942 passenger car front
wheels are independently sprung
by the S. L. A. (short and long arms) method.
design allows the wheel to move straight up or down in following irregularities of
the road. Whether these irregularities be raised obstructions or chuck holes, the shock will not be
transmitted to the car or
construction the complete assembly is attached to an unusually large and rugged
frame front cross member of
box section construction which
is rigidly bolted to the frame side rails, Fig. 1. This cross member is also
reinforced by a bracket under
each side rail. The brackets are riveted to the cross member and bolted to
the frame side rails. This construction facilitates complete overhaul or replacement in that the
complete assembly may be
removed from the frame as a unit.
coil springs 14-1/8" long are employed which are mounted in seats, one seat
attached to the lower control arms and the other being in the frame front cross
acting shock absorbers of the parallel cylinder type are rigidly bolted to the top
of the frame front cross
member. The front and rear upper control arms are permanently attached
to the shock absorber shaft to
provide great strength and resistance to shock. The two upper arms
are electrically welded together.
Each lower control arm is pivoted at its inner end on a forged
shaft attached to the underside of the frame front cross member by two brackets forged integral with
the shaft (see Fig- 10). Each
control arm carries a hardened steel bushing of the thread bearing
type. Neoprene seals cover the inner
end of each bushing and the
threads on the shaft. These seals prevent dirt and water from
entering the bearings, thereby prolonging their life.
steering knuckle support, which carries the steering knuckle and kingpin, is pivoted at
its upper and lower ends to the upper and lower control arms.
At the lower end a steel threaded type bushing is screwed into the
steering knuckle support. A
threaded bolt which passes through both arms and the bushing completes the
mounting. Neoprene seals
protect the bearing from road dirt