Rough Country PERF677 - Manual

JEEP JK 2 1/2” PROGRESSIVE COIL KIT W/
PERFORMANCE 2.2. SHOCK ABSORBERS
Thank you for choosing Rough Country for all your suspension needs.
Rough Country recommends a certified technician install this system. 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. Check the kit hardware against the kit content list on this page and
the kit layout on the back page. Be sure you have all needed parts and know where they go. Also please review tools
needed list and make sure you have the necessary tools to install this kit.
PRODUCT USE INFORMATION
As a general rule, the taller a vehicle is, the easier it will roll. 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 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 re-
sponsible for any product that is altered.
This system was developed to provide a level stance to the Jeep after it is lifted. Please note that this lift does not mod-
ify the front or rear track bar or its mounting points. This will result in what is generally considered a very insignificant
shift in both the front and rear axle of approx 1/4 of an inch. Rough Country offers an optional rear track bar bracket Part
# 1166 to address this. Please call your nearest Rough Country dealer to inquire.
IMPORTANT NOTE : The draglink must be adjusted to center the steering wheel BEFORE the vehicle is driven.
Failure to do so will cause a computer error in the Jeep’s traction control system.
This suspension system was developed using a 285/75R17” tire with factory wheels. If bigger/wider tire are used with the
factory wheels or factory offset wheels you must carefully check the clearance during turning between the tires and the
lower control arm and the front sway bar link before driving.
If you have any questions concerning the design, function, and correct use of our products contact us at 800-222-7023.
Kit Contents:
2– Front Progressive Coil Springs
2– Rear Progressive Coil Springs
2- Fr Performance 2.2 Shock Absorbers
2– Rr Performance 2.2 Shock Absorbers
1--Shock Bag
92PERF1678
Tools Needed:
10mm Wrench
16mm Wrench
16mm Socket
18mm Wrench
18mm Socket
19mm Deep Well Socket
Jack
Jack Stands
Torque Specs:
Size Grade 5 Grade 8
3/8” 30 ft/lbs 35 ft/lbs
7/16” 45 ft/lbs 60 ft/lbs
1/2” 65 ft/lbs 90 ft/lbs
9/16” 95 ft/lbs 130 ft/lbs
5/8” 135 ft/lbs 175 ft/lbs
Class 8.8 Class 10.9
8MM 18ft/lbs 23 ft/lbs
10MM 32ft/lbs 45ft/lbs
12MM 55ft/lbs 75ft/lbs
14MM 85ft/lbs 120ft/lbs