3
G.
Unless otherwise specified, tighten all bolts to the
standard torque specifications listed at the end of
the note's section. Do not use an impact wrench to
tighten any of these bolts. They tend to over tighten
smaller bolts and under tighten larger bolts. USE A
TORQUE WRENCH!!!
H.
Rancho parts come with a protective coating. Do
not chrome, cadmium, or zinc plate any of the
components in this kit, or alter their original finish
in any way. However, you may add a layer of
Enamel paint over the original coating.
I.
Do not weld anything to these components, and do
not weld any of these components to the vehicle. If
any component breaks or bends, contact your local
Rancho dealer or Rancho for replacement parts.
J.
Some of the service procedures require the use of
special tools designed for specific procedures.
These special tools should be used when
recommended.
K.
The following tools and supplies are recommended
for proper installation of this kit.
Ρ
Jeep Service Manual
Spring Compressor
Drill Motor
23/64", 15/32", 13/32" and 9/32" Drills
Torque Wrench (250 FT-LB capacity)
1/2” Drive Ratchet and Sockets
Combination Wrenches
Allen Wrenches
Torx Key Sockets
Heavy Duty Jack stands
Wheel Chocks (Wooden Blocks)
Hydraulic Floor Jack
Large "C" Clamps and or Bench Vise
Hammer
Molybdenum Grease or Anti Seize Compound
Silicone Spray
Safety Glasses--Wear safety glasses at all times
L.
It is extremely important to replace torsion bars, CV
flanges, and front 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.
M.
Suspension components that use rubber or urethane
bushings should be tightened with the vehicle at
normal ride height. This will prevent premature
failure of the bushing and maintain ride comfort.
N.
The required installation time for this system is
approximately 8 hours. Check off the box (
Ρ
) 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 information pack. If you are
installing this system for someone else, display the
information pack by hanging it from the rear view
mirror.
P.
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
IMPROPER INSTALLATION OF THIS
SUSPENSION SYSTEM.
STANDARD BOLT TORQUE SPECIFICATIONS
INCH SYSTEM
METRIC SYSTEM
Bolt Size
Grade 5
Grade 8
Bolt Size
Class 9.8
Class 10.9
Class 12.9
5/16
15 FT-LB
20 FT-LB
M6
5 FT-LB
9 FT-LB
12 FT-LB
3/8
30 FT-LB
35 FT-LB
M8
18 FT-LB
23 FT-LB
27 FT-LB
7/16
45 FT-LB
60 FT-LB
M10
32 FT-LB
45 FT-LB
50 FT-LB
1/2
65 FT-LB
90 FT-LB
M12
55 FT-LB
75 FT-LB
90 FT-LB
9/16
95 FT-LB
130 FT-LB
M14
85 FT-LB
120 FT-LB
145 FT-LB
5/8
135 FT-LB
175 FT-LB
M16
130 FT-LB
165FT-LB
210 FT-LB
3/4
185 FT-LB
280 FT-LB
M18
170 FT-LB
240FT-LB
290 FT-LB
BOLT IDENTIFICATION
