Trail Master Suspension TM401_TM401N 2004– 2013 FORD F-150 2WD/4WD 2.0 FRONT SPACER KIT - Manual (Page 3)

TM401 & TM401N
Revised
8.9.13
3
Before Starting Installation
1. Carefully read all warnings and instructions com-
pletely before beginning.
2. Verify all parts have been received in this kit by
checking the parts list at the end of this document.
3. Only install this kit on the vehicle for which it is
specified. If anytime during the installation you en-
counter something different from what is outlined in
the instructions, call technical support at (877) 695-
7812.
4. Park vehicle on a clean, dry, flat, level surface and
block tires so vehicle cannot roll in either direction.
5. Measure ride height with the vehicle supporting its
own weight on level ground. To settle the suspension,
the vehicle should be driven forward at least 10 feet
immediately prior to taking these measurements. Ride
height is the measurement from the center of the axle
straight up (vertical) to the fender lip. Record this
measurement for all four wheels.
Engine Compartment
1. Disconnect both battery cables. Disconnect nega-
tive cable first, then positive cable.
Wheel & Tire Requirements
The factory wheel and tire combination will fit once this
kit is installed.
Torque Specifications:
See factory service manual for torque values when
reusing OE fasteners.
See factory service manual for torque values when re-using
OE fasteners.
Bolt Size Grade 5 (ft.-lbs.) Grade 8 (ft.-lbs.)
1/4”-20 10 10
1/4”-28 10 12.5
5/16”-18 17 22.5
5/16”-24 20 25
3/8”-16 30 40
3/8”-24 35 45
7/16”-14 50 65
7/16”-20 55 70
1/2”-13 75 100
1/2”-20 80 115
9/16”-12 105 135
9/16”-18 115 150
5/8”-11 150 195
5/8”-18 160 210
3/4”-16 175 225
NOTE
Adhere to recommendations when replacement fas-
teners, retainers and keepers are called out in the
factory service manual. When re-assembling the ve-
hicle it is recommended by the vehicle manufacturer
that certain fasteners are replaced in order to main-
tain proper retention characteristics. This system
may not include all replacement hardware as recom-
mended by the factory service manual. Additional
replacement hardware should be obtained prior to
installation of this system to meet the requirements
of the factory service manual.
NOTE
Kit parts are prefaced by the word kit and appear in
bold print.
Tire & Wheel Information:
Due to differences in manufacturing, dimensions
and inflated measurements, tire and wheel com-
binations should be test fit prior to installation.
Tire and wheel choice is crucial in assuring
proper fit, performance, and the safety of your
Trailmaster equipped vehicle. For this applica-
tion, we recommend no larger than a 35” X
12.50” wheel combination with a maximum
backspacing of 5 3/4”. Additionally, quality tire
of radial design wide is also recommended. Vio-
lation of these recommendations will not be en-
dorsed as acceptable by Trailmaster Suspension
and will void any and all warranties either writ-
ten or implied.