Tire & wheel information – Trail Master Suspension TM401_TM401N 2004– 2013 FORD F-150 2WD/4WD 2.0 FRONT SPACER KIT User Manual

Page 3

TM401 & TM401N

Revised

8.9.13

Before Starting Installation

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

3/8”-16 30 40

3/8”-24 35 45

7/16”-14 50

7/16”-20 55

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.