1) Classic Performance Products F-100 power steering
assist kit (part number 5356PSK) includes a new tie rod, pitman arm and
drag link. The directional valve is part of the drag link assembly and the
slave cylinder is attached to the tie rod. This is a power assist system
similar to the factory units installed on mid-year Corvettes and early Mustangs.
2) The first step is to remove the factory tie rod from
the truck. Then adjust the rod ends so the new tie rod is the same length
as the original making sure the tube is centered between the rod ends.
3) The factory drag link and pitman arm are removed and
separated. The original ball joining the two (ARROW) must be used to connect
the new drag link to the new pitman arm.
4) Loosely install the new tie rod with the free end of
the slave cylinder pointing toward the passengers side of the truck.
Then remove the rear U-bolt that holds the axle to the leaf spring.
5) Next attach the slave cylinder anchor plate to the
axle using the long U-bolt included in the kit.
6) The ends of the U-bolt are trimmed flush with the nuts
to keep the installation neat and clean.
7) The new pitman arm and drag link replaces the original
assembly in like fashion. If you disconnect the hoses from either the directional
valve or the slave cylinder, make sure they are reconnected in their original
locations. These are LEFT and RIGHT steering hoses and therefore cannot
8) Adjust tow-in by rotating the tie rod tube. Tighten
all fasteners and install safety cotter pins in each steering joint. Then
center the rod-end of the slave cylinder using a measurement
included in the installation instructions. With the wheels straight, the
rod should be extended a distance equal to 1/2 of its full travel.
9) A shim kit and installation instruction included with
the kit is needed to lower the operating pressure of a stock GM pump to
An optional adjustable proportioning/bypass valve available
from CPP is mandatory if you are powering the system with anything other
than a factory GM power steering pump. However, the adjustable prop valve
is a recommended option for all systems. The valve controls the amount of
power assist by allowing a varying amount of fluid to bypass to sump. Mount
the proportioning/bypass valve in an inconspicuous location inside the engine
compartment. Make sure the hoses are a safe distance from the exhaust system
or other heat source. The pressure and return hoses leading to the directional
valve are connected to one side of the adjustable proportioning valve as
shown. The pressure and return hoses leading to the power steering pump
are attached to the opposite side of the valve. A power steering pump is
not supplied in the kit. The proportioning/bypass valve will allow the system
to be connected to any factory production power steering pump.