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ADVANCETRACSTABILITY ENHANCEMENT SYSTEM
AdvanceTracsport mode
The AdvanceTracsystem provides an available sport mode specially
calibrated for the Boss302 and its unique performance characteristics.
This can be selected utilizing the stability control off switch. While in
AdvanceTracsport mode, the selected steering option will be
overridden and placed in sport mode. See theDrivingsection of the
Owner’s Manualfor more information.
DRIVING YOUR VEHICLE THROUGH WATER
The Boss302 has aerodynamic devices attached to the underbody
designed to help control airflow for superior performance. Therefore, the
driver must be especially careful to avoid driving through deep or
standing water. If driving through deep or standing water is unavoidable,
proceed very slowly. Never drive through water that is higher than the
bottom of the wheel rims. Water may enter through the air intake due to
the vacuum generated in the engine. Damage caused by the intake of
water in the engine is not covered by the warranty. Refer toTi r e
informationfor more information.
GROUND CLEARANCE
Note:Because of low vehicle ground clearance, use caution when
approaching curbs/curb stops from the front and rear as vehicle damage
will occur. Additionally, when crossing speed bumps or driveway curbs,
Ford recommends approaching at a very low speed.
Driving your Boss302
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WASHING YOUR VEHICLE
Note:Do not drive your vehicle through an automated, commercial car
wash due to the vehicle’s low ground clearance, tire width and track
width. Wash your vehicle by hand, or by using a touchless commercial
wash with no mechanical tracks on the floor. Do not use a commercial or
high pressure wand on the striped surfaces or stripe edges.
TRAILER TOWING
WARNING:Never tow a trailer with this vehicle. Your vehicle is
not equipped to tow. No towing packages are available through
an authorized dealer.
Driving your Boss302
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SUSPENSION
•MacPherson strut with L-arm front suspension
•8.8 inch solid rear axle with limited slip differential (3.73:1 ratio)
Boss302:
•34.6 x 4.4 mm tubular front stabilizer bar
•25.0 mm solid rear stabilizer bar
•Tokico twin tube adjustable shocks and struts
•26.0 N/mm front and 32.4 N/mm rear coil springs
Boss302 with Laguna Secapackage:
•34.6 x 4.4 mm tubular front stabilizer bar
•26.0 mm solid rear stabilizer bar
•Tokico twin tube adjustable shocks and struts
•24.0 N/mm front and 33.5 N/mm rear coil springs
ADJUSTABLE SUSPENSION DAMPERS
Your vehicle has adjustable
suspension dampers. The
adjustment controls are located on
top of the damping rods and can be
adjusted with a small screwdriver.
Remove the cap to access the
control for the front strut.
To access the rear shock, pull the
carpet back in the trunk area. Then,
lift the trim panel and pull rearward
to expose the adjustable suspension
damper.
1
2
3
4
5
Chassis
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Position (1) has the lowest damping force which provides for a more
comfortable ride. Position (5) has the highest damping force which
provides more responsive handling. Position (2) is the factory setting
(shown in graphic).
Left and right dampers should always be set to the same dial position.
Front and rear can be adjusted independently to change vehicle
response.
Chassis
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WHEELS
Your Boss302 is equipped with unique wheels matched to the tires.
These wheels are more susceptible to damage due to their diameter,
width and low profile tires. To avoid damage to your wheels:
•Maintain proper tire pressure (seeTiresin this supplement).
•Do not drive your vehicle through an automated, commercial car wash
due to the vehicle’s low ground clearance, tire width and track width.
Wash your vehicle by hand, or by using a touchless commercial wash
with no mechanical tracks on the floor.
•When installing wheels, always torque lug nuts to specification with a
torque wrench.
•Inspect your wheels for damage on a regular basis. If a wheel is
damaged, replace it immediately.
•In the event that you encounter an abnormally harsh impact, inspect
the outer edge of your wheels, both inside and out, for damage.
Operating at High Speeds
Your Boss302 is capable of high speeds and is equipped with tires
rated for the vehicle’s maximum speed, electronically limited to 155 mph
(250 km/h). Remember to drive safely, obey all traffic laws and only
operate your vehicle at high speeds at locations equipped and designed
to do so safely. Before operating your vehicle at high speeds:
•Ensure correct tire pressures (seeTiresin this supplement).
•Inspect wheels and tires for wear and damage. Replace any damaged
wheels or tires.
•Do not operate your vehicle at high speeds with more than two
passengers or while carrying cargo.
Wheel Lug Nut Torque Specifications
WARNING:When a wheel is installed, always remove any
corrosion, dirt or foreign materials present on the mounting
surfaces of the wheel or the surface of the wheel hub, brake drum or
brake disc that contacts the wheel. Make sure that any fasteners that
attach the rotor to the hub are secured so they do not interfere with
the mounting surfaces of the wheel. Installing wheels without correct
metal-to-metal contact at the wheel mounting surfaces can cause the
wheel nuts to loosen and the wheel to come off while the vehicle is in
motion, resulting in loss of control.
Tire Information
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Retighten the lug nuts to the specified torque at 500 miles (800 km)
after any wheel disturbance (tire rotation, changing a flat tire, wheel
removal, etc.).
Bolt size Wheel lug nut torque*
ft-lb N•m
1 2x 20 100 135
* Torque specifications are for nut and bolt threads free of dirt and
rust. Use only Ford recommended replacement fasteners.
IMPORTANT TIRE INFORMATION
Your vehicle is equipped with unique wheels and tires designed to
enhance performance. To continue providing this performance, extra
care must be taken when operating and maintaining your vehicle.
Wheels and Tires
Boss30219in.x9.0in.front,19in.x9.5in.rear
cast aluminum wheels
255/40ZR19 front, 285/35ZR19 rear tires
Boss302 with Laguna
SecaPackage19 in. x 9.0 in. front, 19 in. x 10.0 in. rear
lightweight cast aluminum wheels
255/40ZR19 front, 285/35ZR19 rear tires
(ultra high performance)
Tires
WARNING:Snow tires must be the same size, load index, speed
rating as those originally provided by Ford. Use of any tire or
wheel not recommended by Ford can affect the safety and
performance of your vehicle, which could result in an increased risk of
loss of vehicle control, vehicle rollover, personal injury and death.
Additionally, the use of non-recommended tires and wheels could
cause steering, suspension, axle or transfer case/power transfer unit
failure.
Tire Information
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The Mustang Boss 302 Laguna Seca package includes D.O.T. approved
ultra high-performance summer tires with track capability. The rubber
compounds used in these tires lose flexibility and may develop surface
cracks in the tire tread area at temperatures below 20°F (-7°C). Always
store your tires indoors at temperatures above 20°F (-7°C). If the tires
have been subjected to 20°F (-7°C) or less, warm them in a heated space
to at least 40°F (5°C) for at least 24 hours before installing them on a
vehicle, or moving the vehicle with the tires installed, or checking tire
inflation. Do not place tires near heaters or heating devices used to
warm the room where the tires are stored. Do not apply heat or blow
heated air directly on the tires. Always inspect the tires after storage
periods and before use as outlined in the owner’s manual. Ford does not
recommend using the high performance summer tires on your Boss 302
or Boss 302 Laguna Seca edition when temperatures drop to
approximately 40
oF(5oC) or below, or in snow/ice conditions.
WARNING:If equipped with the Laguna SecaPackage, never
drive with these tires in any wet conditions (rain, snow, ice, etc.)
because they cannot channel water away and will slide risking serious
injury.
•Note:Do not use tire chains on the original wheels and tires of your
vehicle. The use of any type of tire chain on these tires may damage
your vehicle.
•Always maintain your tire pressures according to the tire information
placard on the driver’s door jamb, using an accurate gauge.
•Tire pressures are specified “cold” and should be checked after the
vehicle has been parked for at least 3 hours. Do not reduce pressure
of warm tires.
•Check your tire pressure often to maintain it properly. Tire pressure
can diminish over time and fluctuate with temperature.
•Do not overload your vehicle. Maximum vehicle and axle weights are
listed on the tire information placard.
•Extra caution should be taken when operating the vehicle near its
maximum load, including assuring proper tire pressure and reducing
speeds.
•Extra caution should be taken when operating on rough roads to avoid
impacts that could cause tire damage.
•In the event that you encounter an abnormally harsh impact, inspect
your tires for damage.
Tire Information
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•Inspect your tires for damage on a regular basis. If a tire is damaged,
replace it immediately.
•Proper suspension alignment is critical for maximum performance and
optimal tire wear. If you notice uneven tire wear, have your alignment
checked.
•When replacing tires, the only way to ensure original performance is
to use the original equipment tire. If a different tire is used, it should
be the same size, speed rating and load rating and be replaced as a set
of four. Never mix tire brands.
Winter Driving
The original equipment tires on your Boss302 are designed for high
performance steering and handling. They are not designed for winter use
on ice or snow and cannot be used with snow chains. If you will be
operating your vehicle in these conditions, winter or all-season tires must
be used.
Do not operate your vehicle above posted speed limits and never
perform high speed driving with winter tires, even in clear, dry driving
conditions.
Tire Rotation
Because your vehicle is equipped with unique larger tires on the rear
wheels, you can only rotate the tires side to side. You must not rotate
tires in a crisscross pattern or front to rear. If you notice that the tires
wear unevenly, have them checked.
The tires on your Boss302 should be rotated every 5,000 miles
(8,000 km). This will help your tires wear more evenly, providing better
tire performance and longer tire life.
The optional Laguna SecaPackage tires (255/40ZR19 front, 285/35ZR19
rear) are directional. Tire rotation is not recommended for directional
tires.
Tire Information
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