Rough-country 576.20 User Manual

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04-08 FORD F150 6” KIT
THANK YOU FOR CHOOSING ROUGH COUNTRY FOR 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 parts list on the next 2 pages.
Be sure you have all needed parts and know where they go. Also please review 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
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. If questions exist we will be happy to answer them concerning the design, func-
tion, and correct use of our products.
This suspension system was developed using a 35X12.50/17, tire on aftermarket 17” wheels with 4 1/2-5” backspace.
The lift was designed to lift the front 6” and the rear 5-5 1/2” to level the vehicle. Due to manufacturing, dimension vari-
ances, and inflation all tire and wheel combinations should be tested prior to installation on all oversized / wider then
stock tires We recommend a wheel not exceeding 8" in width be used with a minimum backspacing of 4.5" to a maxi-
mum of 5".
Rough Country recommends not operating the vehicle in 4 wheel drive above 40 mph. Doing so may result in a
low frequency front driveshaft vibration. See Driveshaft Re-clocking Instructions.
NOTICE TO DEALER AND VEHICLE OWNER
Any vehicle equipped with any Rough Country product should have a “Warning to Driver” decal installed on the inside of
the windshield or on the vehicle’s dash. The decal should act as a constant reminder for whoever is operating the vehi-
cle of its unique handling characteristics.
92157600
5mm wrench /socket
8mm wrench /socket
10mm wrench /socket
11mm wrench /socket
12mm 12 point wrench
14mm wrench /socket
15mm wrench /socket
16mm wrench /socket
18mm wrench /socket
19mm wrench /socket
21mm wrench /socket
22mm wrench /socket
24mm wrench /socket
30mm wrench /socket
Tools Needed:
Floor Jack
Jack stands
Hammer
7/16” wrench /socket
9/16 wrench /socket
5/8” wrench /socket
3/4” wrench /socket
1 1/16 socket
Drill
17/32” Drill Bit
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
Class 8.8 Class 10.9
6MM 5 ft/lbs 9 ft/lbs
8MM 18ft/lbs 23 ft/lbs
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
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Summary of Contents

Page 1 - 04-08 FORD F150 6” KIT

04-08 FORD F150 6” KIT THANK YOU FOR CHOOSING ROUGH COUNTRY FOR YOUR SUSPENSION NEEDS. Rough Country recommends a certified technician install this

Page 2

46. Remove the inner bearing assembly using 8mm wrench and remove the outer bearing assembly using a 15 mm wrench. See Photo 37 & 38. Remove the

Page 3 - KIT CONTENTS

REAR INSTALLATION 1. Chock the front tires and jack the rear the rear end up. Put jack stand under the frame rail and lower truck onto jack stands.

Page 4

7. On some models it will be necessary to mark and drill the holes. If needed drill using a 11/32” bit as shown. See Photo 5. 8. Reinstall the e-bra

Page 5

PHOTO 10 PHOTO 11 13. Remove the stock rear brake line bracket from the frame using a 10mm wrench. See Photo 10. Install the new brake line bracket o

Page 6

FRONT DRIVESHAFT RECLOCKING INSTRUCTIONS Driveshaft modification will need to be performed if the vehicle experiences a driveshaft vibration . The re

Page 7

DRILLING TEMPLATE

Page 8

THANK YOU FOR CHOOSING ROUGH COUNTRY FOR YOUR SUSPENSION NEEDS POST INSTALLATION INSTRUCTIONS 1. Check all fasteners for proper torque. Check

Page 9

1576 BOX 1 PART # DESCRIPTION QTY 94003703 DIFF DROP 2 94003710 BRAKE LINE BRACKET 1 94003709 PASS DIFF BRACKET 1 94003035 STRUT SPACER 2 9400

Page 10

Rear Blocks (2) Rear RC Shocks (2) Strut Spacer (2) Front Cross Member E Brake Line Brkt Dif Skid Plate Knuckles (2) Rear Cross Member Front Brake Li

Page 11

INSTALLATION INSTRUCTIONS 1. Chock the rear wheels and jack up the front of the vehicle. 2. Place jack stands under the frame rails and lower onto

Page 12

10. Remove the knuckle from the vehicle. Be sure not to overextend or pull out the CV axle shaft. 11. Repeat steps 4-10 for opposite side of the vehic

Page 13

19. Remove the sway bar as shown in Photo 13 using a 15mm socket. Set sway bar aside and retain hardware for re-use. 20. Remove the drive shaft bolts

Page 14

25. Remove the oil catch pan using 10mm wrench. See Photo 19. 26. Remove the nuts on the rack and pinion mounting bolts using a 24mm socket. Also re

Page 15 - DRILLING TEMPLATE

31. Raise the differential into position with a floor jack and install using the new 12mm x 100mm bolt on the passenger side. Do not install nut at th

Page 16

37. Install new skid plate using the 3/8 self tapping bolts on front cross member and on the rear cross member using a 9/16” mm wrench as shown in Ph

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