Rough Country 591.20 - Manual

05-07 F250 8” SUSPENSION KIT
92159000
Kit Contents:
Diesel Coil Springs
Upper Control Arms (2)
Lower Control Arms (2)
Stabilizer Drop Brackets
Track Bar Bracket
Control Arm BracketBrake Line Drop
Bracket
Sway Bar Link Extension
Pitman Arm
Carrier Bearing Drop Brkt
Front and Rear Shocks
7” Rear Spring
Rear U-Bolt Kit
Tools Needed:
8mm Wrench 1 1/8” Wrench
10mm Wrench 1 13/16” Wrench
12mm Wrench Jack Stands
15mm Wrench Jack
17mm Wrench
17mm Socket
18mm Wrench
18mm Socket
19mm Wrench
21mm Wrench
24mm Socket
30mm Socket
Thank you for choosing Rough Country for your suspension needs.
Rough Country recommends a certified technician installs 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 all the instructions before beginning the installation. Check the kit hardware against the parts list and the kit
contents on the back of these instructions. Be sure you have all the needed parts and understand where they go. Also
please review the tools needed list and make sure you have needed tools.
PRODUCT USE INFORMATION
As a general rule, the taller a vehicle is the easier it will roll. 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.
Braking performance and capabilities are decreased when significantly larger/heaver tires and wheels are used. Take
this into consideration while driving. Also, speedometer recalibration is necessary when larger tires are installed.
Do no add, alter, or fabricate any factory or after-market parts which increase vehicle height over the intended height of
the Rough Country product purchased. Mixing component brands, lifts, and/or combining body lift with suspension lifts
voids all warranties. 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.
This kit is packaged as a leveling kit—raising the front 8” and the back 7 with new leaf springs”. If you desire a different
look or if your truck has a tool box or something else that is going to bring the rear end down, please consult with your
sales repetitive about option higher block and u-bolt options.
The 8” suspension system was developed for 37x12.50x17 tire on an after market 17x9” wheel with 4” of back spacing.
NOTICE TO DEALER AND VECHICLE OWNER
Any vehicle equipped with any Rough country product must have the “Warning to Driver” decal installed on the sun visor
or dash. The decal is to act as a constant reminder for whoever is operating the vehicle of its unique handling character-
istics. INSTALLING DEALER—It is your responsibility to install the warning decal and to forward these installation in-
structions on too the vehicle owner for review and to be kept in the vehicle for its service life.
Torque Specs:
Size Grade 5 Grade 8
5/16” 15 ft/lbs 20 ft/lbs
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
3/4” 185 ft/lbs 280 ft/lbs