Rough Country 256.20 - Manual

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Rough Country recommends this system be installed by a certified technician. In addition to these instructions,
professional knowledge of disassemble/reassembly procedures as well as post installation checks must be known.
Attempts to install this system without this knowledge and expertise may jeopardize the integrity and/or operating
safety of the vehicle.
Please read instructions before beginning installation. Be sure you have all needed parts and know where they go.
With the installation of all lift kits and larger tires it is important to check the condition of your steering stabilizer. If
the stabilizer is worn or leaking it should be replaced. Steering stabilizers are designed to restrain “bump steering”
and front end vibration, giving added life to tires, ball joints, and other steering components. A dual stabilizer kit is
recommended for vehicles equipped with a snow plow, winch, or larger tires
PRODUCT USE INFORMATION
As a general rule, the taller a vehicle is, the easier it will roll. Offset, as much as possible, what is lost in rollover
resistance by increasing tire track width. In other words, go "wide" as you go "tall". Many sportsmen remove their
mud tires after hunting season and install ones more appropriate for street driving; always use as wide a tire and
wheel combination as possible to enhance vehicle stability.
We strongly recommend, because of rollover possibility, that the vehicle be equipped with a functional roll-bar and
cage system. Seat belts and shoulder harnesses should be worn at all times. Avoid situations where a side rollover
may occur
Generally, braking performance and capability are decreased when significantly larger/heavier tires and wheels are
used. Take this into consideration while driving.
Do not add, alter, or fabricate any factory or after-market parts to increase vehicle height over the intended height
of the Rough Country product purchased. Mixing component brands is not recommended.
Rough Country makes no claims regarding lifting devices and excludes any and all implied claims. We will not be
responsible for any product that is altered.
If question exist we will be happy to answer any questions concerning the design, function, and correct use of our
products.
NOTICE TO DEALER AND VEHICLE OWNER
Any vehicle equipped with any Rough Country product should have a “Warning to Driver” decal installed on the
inside of the windshield or on the vehicle’s dash. The decal should act as a constant reminder for whoever is
operating the vehicle of its unique handling characteristics.
INSTALLING DEALER - it is your responsibility to install the warning decal and forward these installation
instructions on to the vehicle owner for review. These instructions should be kept in the vehicle for its service.
INSTALLATION INSTRUCTIONS
1. Put the vehicle on a level surface and chock the rear wheels.
2. Jack up the vehicle and place jack stands on the frame rail to support the vehicle.
3. Remove the shock absorbers from the front axle and discard. New Heckethorn shocks will be installed in a
later step.
4. Support the axle with a floor jack. On ½ & 3/4T, remove the u-bolts. On 1 ton, remove the u-bolts and studs
from the axle.
5. Lower axle down, away from the spring, using the floor jack. Note: use caution when lowering the axle not
to overextend the brake lines.
6. After the spring is free from the axle, remove the spring eye bolts and remove the spring.
7. Install the new Rough Country springs in the spring mounts using the stock hardware. Torque to 100-120ft/lbs.
8. Jack axle up to meet the new Rough Country spring. On the ½ & ¾ t, install the new u-bolts and torque to 80-
90ft/lbs. On 1 Ton models, install the u-bolts and studs. Note: Make sure the axle seats properly on the
springs and the center pin is in the axle housing.
73-87 CHEVY P/U, 73-91 BLAZER, SUBURBAN, 1 ton 4”-6” SUSPENSION KITS
92114500 REV