Trail Master Suspension TM402_TM402N 2009– 2013 FORD F-150 2WD ONLY 2 1/2 FRONT SPACER KIT - Manual (Page 8)

TM402 &
TM402N
Revised
8.9.13
8
Engine Compartment
1.Connect both battery cables. Connect positive
cable first, then negative cable.
Miscellaneous
1.Apply kit label (warning) onto dashboard in plain
sight of all vehicle occupants.
2.Adjust headlights.
3.Check all fasteners to ensure they are tight.
4.Ensure all wires, hoses, cables, etc. are prop-
erly connected and there is ample slack.
5.Start engine and top off cooling system. Purge
air from cooling system according to manufac-
turer’s instructions. Install radiator cap.
6.Align vehicle
Dynamic Vehicle Check
1. Check steering and suspension in all positions
to ensure that there is no bind and adequate
clearance between all moving, fixed, and
heated members. Check operation of clutch,
brake system, and parking brake. Check op-
eration of transmission and transfer case. En-
sure there is full engagement in all gears and
4WD ranges. Check battery connections and
electrical component operations. Test-drive
vehicle.
Troubleshooting
1. Once the vehicle has been lifted, some vehicle
vibration may become more apparent to the
driver. The reason for the vibration may be due to
the angle at which the driveline operates. A sus-
pension lift increases the operating angle of the
driveline and normal vehicle vibration is amplified.
Some vibration characteristics are as follows:
a. Acceleration vibration: vibration felt during
acceleration of the vehicle and caused by the
rear axle pinion angle being too high.
b. Deceleration vibration: vibration felt during
deceleration of the vehicle and caused by the
rear axle pinion angle being too low.
c. General vibration: vibration caused by rear pin-
ion angle in relation to the transfer case output
shaft.
WARNING
If the engine cooling system is hot, the coolant will be
HOT and UNDER PRESSURE. To prevent serious per-
sonal injury, wait until the cooling system is completely
cool before removing the cap from the radiator.
WARNING
Retorque all fasteners after 500 miles and after off road
use. All suspension lift components should be visually
inspected and fasteners retorqued during routine vehicle
servicing.
WARNING
Re-torque all fasteners after 500 miles and after
off road use. All suspension lift components
should be visually inspected and fasteners re-
torqued during routine vehicle servicing.
Caution:
Larger wheel and tire combinations increase
stress and wear on steering and suspension
components, which leads to increased mainte-
nance and higher risk for component failure. Lar-
ger wheel and tire combinations also alter speed-
ometer calibration, braking effectiveness, center
of gravity, and handling characteristics. Consult
an experienced local off road shop to find what
wheel and tire combinations work best with your
vehicle.