3
IMPORTANT NOTES
A.
Before installing this system, have the vehicle’s alignment and
frame checked by a certified technician. The alignment must
be within factory specifications and the frame of the vehicle
must be sound (no cracks, damage or corrosion).
Have all suspension, steering and driveline components
inspected and replaced if worn or damaged
B.
The components of Rancho’s suspension system are designed
as a single integrated system. To avoid compromises in terms
of safety, performance, durability or function, do not install a
body lift kit with Rancho’s suspension system or interchange
parts from this system with components from another
manufacturer. Use of other components will result in the
forfeiture of any type of warranty on the vehicle/suspension
system.
C.
Some components required for the installation of this kit may
need to be purchased separately. See “
SPECIFICATIONS &
REQUIREMENTS
” on next page of this manual.
D.
Compare the contents of this system with the parts list in these
instructions. If any parts are missing, contact the Rancho
Technical Department at 1-734-384-7804.
E.
Do not powder-coat or plate any of the components in this
system. To change the appearance of components,
automotive paint can be applied over the original coating.
F.
Each hardware kit in this system contains fasteners of high
strength and specific size. Do not mix hardware kits or
substitute a fastener of lesser strength. See bolt identification
table at end of instruction.
G.
Install all nuts and bolts with a flat washer. When both SAE
(small OD) and USS (large OD) washers are used in a fastener
assembly, place the USS washer against the slotted hole and
the SAE washer against the round hole.
H.
Apply a drop of thread locking compound to all bolts during
installation.
CAUTION: Thread locking compound may
irritate sensitive skin. Read warning label on container before
use.
I.
Unless otherwise specified, tighten all nuts and bolts to the
standard torque specifications shown in the table at end of
instruction. USE A TORQUE WRENCH for accurate
measurements.
J.
Do not weld anything to these components, and do not weld
any of these components to the vehicle unless specifically
stated in the instructions
K.
It is extremely important to replace coil springs, axle flanges,
and drive shaft/pinion relationships as original. Be sure to
mark left/right, front/rear, and indexing of mating parts
before disassembly. A paint marker or light colored nail polish
is handy for this.
L.
Suspension components that use rubber or urethane bushings
should be tightened with the vehicle at normal ride height
unless otherwise specified. This will prevent premature failure
of the bushing and maintain ride comfort.
M.
Some of the service procedures require the use of special tools
designed for specific procedures. If you do not know how to
safely use any of these tools, or do not have them, stop the
project and consult a qualified mechanic. See “
Tools and
Supplies
” on next page of this manual
N.
The required installation time for this system is approximately
8 hours for two people. Check off the box (
) at the beginning
of each step when you finish it. Then when you stop during the
installation, it will be easier to find where you need to continue
from.
O.
Important information for the end user is contained in the
consumer/installer information pack. If you are installing this
system for someone else, place the information pack on the
driver’s seat. Please include the installation instructions when
you finish.
P.
The lifespan of Rancho products depends on many factors.
Improper use, abuse or harsh use in general may compromise
the integrity of the suspension system and significantly reduce
its lifespan. The suspension system is also subject to wear over
time. Have the suspension system regularly inspected and
maintained by qualified mechanics. If the inspection reveals
any damage or excessive wear, no matter how slight,
immediately replace or repair the component. The suspension
system must be regularly maintained in order to optimize its
safe and efficient use. The more severe the conditions under
which the suspension system is operated, the more often it
must be inspected and maintained.
Q.
If any component breaks or bends, contact your local Rancho
dealer or Rancho for replacement parts or, contact the Rancho
Technical Department at 1-734-384-7804.
Thank you for purchasing the best suspension system available. For the best installed system, follow these instructions. If
you do not have the tools or are unsure of your abilities, have this system installed by a certified technician. RANCHO IS
NOT RESPONSIBLE FOR DAMAGE OR FAILURE RESULTING FROM AN IMPROPER INSTALLATION
The driver of this suspension system recognizes and agrees that there are risks inherent in driving a vehicle with a lifted suspension system, including but
not limited to the risk that you could be involved in an accident that would not occur in an unmodified vehicle. By his/her purchase and use of this
suspension system, the user expressly, voluntarily and knowingly accepts and assumes these risks, and agrees to hold Tenneco, Inc. and its related
companies harmless to the fullest extent permitted by law against any resulting damages.
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