Rough Country 488.20 - Manual

99-04 F250/F350 8” KIT
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. 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. If any parts are missing or if you have any questions please contact us at 731-285-9000
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.
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 not 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 with its new heavy duty track bar only fits trucks produced after 03/01/99—2000 models forward. If you
have a truck produced prior to this date this kit will not fit the vehicle. A difference of bolt size on the stock track
bar bracket does not allow the installation of the new track rod.
This 8” suspension system was developed for 38x13.50x17 tire on an after market wheel with 4.5” of back spacing.
Front driveshaft modification may be necessary and must be checked prior to driving the vehicle. Lengthening and bal-
ancing must be performed by a drive line specialist. Failure to perform driveshaft modifications may result in driveshaft
damage.
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 to the vehicle owner for review and to be kept in the vehicle for its service life.
Kit Contents:
8073-Front Spring
8072-Rear Spring
1488 Kit Box Containing:
1-FR Track Rod
1-FR Track Rod Bracket
1-Steering Adj. Sleeve
2-FR Shock-650341 Hydro / 650377 Nitro
2-RR Shock-658049 Hydro / 658048 Nitro
2-Fr Brake Line
1-Rr Brake Line
1-Pitman Arm
1-Carrier Bearing Drop Bracket Tools Needed:
Assorted Metric Wrenches
Assorted standard wrenches
Jack stands
Floor jack
92148800
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
3/4” 185 ft/lbs 280 ft/lbs
Class 8.8 Class 10.9
10MM 32ft/lbs 45ft/lbs
12MM 55ft/lbs 75ft/lbs
14MM 85ft/lbs 120ft/lbs
16MM 130ft/lbs 165ft/lbs
18MM 170ft/lbs 240ft/lbs