Owners manual

3
M. The required installation time for this system is
approximately 8 hours. 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.
N. When jack stands or a frame-contact type hoist is used,
verify that the lifting pads are positioned properly to allow
removal of the suspension arm frame brackets. If necessary
provide additional support to keep the vehicle from tipping.
O. Welding on a vehicle creates an electrical charge
throughout the body and frame. Disconnect the vehicle’s
battery prior to any welding. Place welding ground clamps
as near as possible to the weld. Never use a vehicle
suspension component as a welding ground point.
P. The RS66105 suspension system can only be installed
on vehicles equipped with a Dana 44 rear axle in the JK
factory configuration.
Q. 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.
R. During high articulation events, the front driveshaft may
contact exhaust or transmission oil pan. A smaller diameter
drive shaft is suggested for optimal performance.
Rancho recommends Powertrain Industries drives shafts:
2007 – 2011 Models:
Front drive shaft 4dr / 4dr Part Number 3194-1925
Rear drive shaft 4dr Part Number 3194-2750
Rear drive shaft 2dr Part Number 3194-0725
2012 Models
Front drive shaft 2dr / 4dr Part Number: 3194-2125
Rear drive shaft 2dr Part Number: 3194-0475
Rear drive shaft 4dr Part Number: 3194-2550
Powertrain Industries, Garden Grove, CA.
1-800-798-4585.
S. 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.
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