Rough Country 774S User Manual

92177400

07–UP TUNDRA 4 1/2” LIFT KIT

Thank you for choosing Rough Country for all your suspension needs.

This kit will fit both 4WD and 2WD models, all brackets will be used for 4WD models. On 2WD models the differ­ential brackets will not be used. In this instruction sheet, the 4WD model is shown.

PRODUCT USE INFORMATION

As a general rule, the taller a vehicle is, the easier it will roll. Too offset, as much as possible, what is lost in rollover re­sistance by increasing tire track width. In other words, go "wide" as you go "tall". Many sportsmen remove their mud tires
after hunting season and install ones more appropriate for street driving; always use as wide a tire and wheel combina­tion as possible to enhance vehicle stability.

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 significantly 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 re­sponsible for any product that is altered.
We will be happy to answer any questions concerning the design, function, and correct use of our products by calling 1­800-222-7023.

This 4 1/2” kit was developed to accommodate a Maximum tire size of 35x 12.5x 18” tire on a 18x 8.5 with a
maximum backspacing of 6 3/16”on a wheel. 18” or larger stock wheels can be used but no wider than a 11.5”
tire can be used. Larger tires or different wheel offsets will need to be verified to work with this kit prior to us­age.

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 vehi­cle of its unique handling characteristics.
INSTALLING DEALER - it is your responsibility to install the warning decal and forward these installation instructions on

Tools Needed:

Floor Jack / Jack Stands
5mm Allen wrench
10mm socket / wrench
12mm socket / wrench
13mm socket / wrench
14mm socket / wrench
17mm socket / wrench
19mm socket / wrench
21mm socket / wrench
22mm socket / wrench
24mm socket / wrench
39mm socket / wrench
9/16 socket / wrench
5/8 socket / wrench
1 1/16 socket / wrench

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
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

1 3/16 socket / wrench
Pipe wrench
Needle nose pliers
Tin shears / cutters
Shop hammer
Reciprocating-Saw

TORQUE SPECS:

KIT CONTENTS

Rear Blocks & U/bolts

Sway Bar

Drop Brkts (2)

Pass Fr Diff Brkt

Strut Spacers (2)

Pass Knuckle

Kit Contents:
1775Box1:

Front Cross-member
Rear Cross-member
Sway Bar Drop Bracket (2)
Dr Side Steering Stop
Pass Side Steering Stop
1775Box2:
Driver Side Knuckle
Pass Side Knuckle
1774Box3:
Strut Spacer (2)
Rear RCX 2.2 Shock-660564
Rear 3” block (2)
Rear U-bolts (4)
1775Box4:
Driver Front Diff Bracket
Driver Rear Diff Bracket
Pass Diff Bracket
Skid Plate
Fr Crssmber Square Washer (4)
Rr Crssmber Square Washer(4)
Rear E-Brake Bracket (2)
Rear ABS Bracket
Front Brake Bracket (2)
Front Bump-stop Bracket (4)

Rear Cross-member

Fr Cross-member

Bump-stop Brkts (4)

Skid Plate

Steering Stops

Kit Bag:
For Rear Cross-member
18mm X 150mm Bolt (2)

18mm Lock Nut (2)
Square Washers (4)

For Front Cross-member
7/8” x 5” Bolt (2)

7/8” Lock Nut (2)
Square Washer (4)

For Front Driver Diff Bracket (4WD Model)
Bushing (2)

Sleeve
9/16” x 4” Bolt
9/16” Lock Nut
14mm x 60mm Bolt (3)
For Driver Rear Diff Bracket (4WD Model)
Bushing (2)
Sleeve
9/16” x 4” Bolt
9/16” Nut on Skid Plate
14mm x 25mm Bolt
For Pass Side Diff Bracket (4WD Model)
Bushing (4)
Sleeve (2)
9/16” x 4” Bolt (2)
9/16” Washer (1)
9/16” Nut on Skid Plate
9/16” Lock nut (1)

For Front Bump-Stops
10mm x 35mm Bolt (4)

10mm Washer (4)
10mm Lock Nut (4)

For Front Sway Bar Bracket
7/16” x 1 1/4” (4)

7/16” Washer (8)
7/16” Lock Nut (4)

Rear Shocks (2)

Brake Line Brkts

Dr Rr Diff Brkt

Dr Fr Diff Brkt

Dr Knuckle

For Strut Spacers
3/8” Studs (8)
3/8” Nut (8)

3/8” Lock Washer (8)
3/8” Washer (8)

For Front Brake Line Brackets
5/16” x 3/4” Bolt (2)

5/16” Washer (4)
5/16” Lock Nut (2)

For Front Skid Plate
3/8” x 1” Bolt (2)

3/8” x Washer (2)
3/8” Lock Nut (2)

For Rear Shock Mount
Shock Bracket (2)
10mm x 55mm Bolt (2)

Mounting Bushing (2)
Cup Washer (2)
10mm Lock Nut (2)
10mm Flat Washer (2)
12mm x 65mm Bolt (2)
12mm Flange Lock Nut (2)

For Rear E-Brake Bracket
5/16” x 3/4” Bolt (2)

5/16” Washer (4)
5/16” Lock Nut (2)

For Rear Brake Line Bracket
5/16” x 3/4” Bolt

5/16” Washer (2)
5/16” Lock Nut
For Rear ABS Wire Bracket
5/16” x 3/4” Bolt
5/16” Washer (2)
5/16” Lock Nut

INSTALLATION INSTRUCTIONS

1. Park the vehicle on a level surface and chock the rear wheels.

2. Jack up the front of the vehicle and place jack stands under the frame rails. Lower the vehicle onto the jack stands
letting the front suspension hang at full droop. Remove tires and wheels with a 21mm socket.

3. Take ABS wire loose from upper control arm using a 10mm wrench & ABS/ brake line on the knuckle using a 12mm
wrench. Retain the stock hardware. Photo 1 & 2.

Photo 1

4. Remove the sensor as shown in Photo 3 using a 5mm allen wrench.

5. Remove the ABS bracket from the knuckle and remove the wire from the bracket. Cut the bracket as shown to install
on the new knuckle. Retain the stock hardware for reuse. See Photo 4.

Photo 3

Photo 2

Photo 4

6. Using a 1 1/16 and a 1 3/16 wrench loosen the tie-rod end from inner tie-rod as shown in Photo 5. Remove cotter
key from tie-rod end. Using a 24mm wrench remove nut as shown in Photo 6. Use a hammer to break loose tie-rod
from knuckle.

7. Remove brake caliper using a 17mm wrench. Tie caliper out of way, but do not let the caliper hang by the brake line.
Next remove the rotor and check for wear on brake pads and rotor. Any worn parts should be replaced before re­installed.

Photo 5

Photo 6