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2 ‘05-’06 Frontier Leveling - Kit NL221
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
encounter something different from what is outlined
in the instructions, call technical support at (928)
636-3175.
4. Special tools needed:
a. Coil spring compressors
b. Tie rod puller
5. Park vehicle on a clean, dry, flat, level surface and
block tires so vehicle cannot roll in either direction.
NOTE
Kit parts are prefaced by the word kit and appear in
bold print.
NOTE
Adhere to recommendations when replacement fasten-
ers, retainers and keepers are called out in the factory
service manual. When re-assembling the vehicle it is
recommended by the vehicle manufacturer that certain
fasteners are replaced in order to maintain proper
retention characteristics. This system may not include
all replacement hardware as recommended by the fac-
tory service manual. Additional replacement hardware
should be obtained prior to installation of this system to
meet the requirements of the factory service manual.
Ride Height
1. Measure ride height with the vehicle supporting its
own weight on level ground. To settle the suspen-
sion, the vehicle should be driven forward at least 10
feet immediately prior to taking these measure-
ments. 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.
Torque Specifications
1. 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 55 70
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
Measure
Axle
Center
Fender
Lip