435
www.factoryfive.com 508-291-3443
remain very hot, and an average measurement of all of the cylinders can be taken. All oxygen sensors
are recommended to be used when placing a fuel injected engine into a Factory Five kit.
Steering components
Power steering racks from 1987 - 2004 are mostly all 15:1. In 1994 the racks switched from having a
splined shaft for attachment to the steering column to a triangle shaped end, as well as changing the
inner and outer tie rod ends. The 1994 to 2004 inner and outer tie rods are too long and do not work
with an FFR kit. The Factory Five 4.6L steering kit includes the correct inner and outer tie rod ends
along with the correct steering adapter.
Fuel tank, pump, pick ups, vents
1986-2004 Mustang fuel tanks were stamped steel with a plastic under tray, and had two straps that held
them to the chassis. All driver side straps are the same however in 1994 the passenger side strap
changed. Factory Five kits can accept all versions of the strap. The fuel pumps are all in the tank.
From 1988 to 1993 fuel pumps were 88 liters/hr., and the 1994 to 2004 pumps were 110 liters/hr. The
Fuel filler neck is also a donor part required for an FFR kit.. In 1999, the tank filler hole and the filler
neck changed to 1” from 2”. The pump also changed so that it is controlled by a separate module, a
pulse width modular (PWM), in the trunk location that pulses power using to the fuel pump to control
pressure instead of using a mechanical regulator. The top of the tank was changed so putting an older
pump or gauge sender in the tank is not possible.
Fuel lines, fuel filter and bracket
The fuel filter and bracket is the same from 1986 - 2004. All of the front and rear flexible fuel lines
from the 1986-2004 Mustangs are required donor parts for all FFR EFI kits where the donor fuel rails,
and tank are used.
Emergency brake handle
Emergency brake handles with the attached “T”-junction equalizer bar from 1984 to 2004 all work with
FFR kits.
Rear quad shocks
Quad shocks are attached between the axle and the chassis of solid axle Mustangs from 1983.5 to 2004
to prevent wheel hop. This is a required donor part for all 4-link solid axle FFR kits, and they are also
used for independent rear suspension FFR kits. There is a mounting bracket for the quad shock to
mount to the Mustang chassis which is also used for solid axle FFR kits. The IRS kits do not use the
mounting bracket.
Spindles
1979 to 1993 Mustang spindles used a rotor with built in bearing carrier hubs. 1994 to 2004 Mustangs
used a hub that was separate from the rotor, and is often considered part of the spindle. In 1996 the
mount on the spindle for the tie rod end was positioned slightly different than the 94 and 95’s. Factory
Five kits come with a bracket to attach the spindle to the kits upper control arm. In 1999 the lower ball
joints switched over to metric. 1983.5 to 1986 spindles are similar to the 1987 to 1993 spindle except
To Next Page
Loading...
