Rough Country 294.20 User Manual
921275N200
2014 4WD GM 1500 3.5” FRONT
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 rear cover of
these instructions. 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. 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 responsible for any product that is altered. If question exist we will be happy to answer any questions concerning the design, function, and correct use of our products.
**Note** The electric power steering must be unplugged before any of the steering components are removed. Failure to do
so may cause damage to the electric power steering.
This kit is packaged as a leveling kit—raising the front 3.5” and the back 1.75”. If you desire a different look or if the vehicle
has a tool box or added weight in the rear, please consult with your sales representative about other block and u-bolt options.
This suspension system was developed using a 32 x 11.5 tire with factory wheels. Examples of tire sizes that can be used
are 285/75R17, 285/65R18, or 285/55R20. Note if wider tires are used, offset wheels will be required and trimming may be
required.
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
1.75” REAR LIFT KIT
Tools Needed:
18MM Wrench
15MM Wrench
21MM Wrench
11MM Wrench
10MM Wrench
Floor Jack
Jack stands
Strut Compressor
Die Grinder
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 50ft/lbs 75ft/lbs
14MM 85ft/lbs 120ft/lbs
16MM 130ft/lbs 165ft/lbs
18MM 170ft/lbs 240ft/lbs
FRONT INSTALLATION
1. Park the vehicle on a level surface and chock the rear wheels.
2. Jack up the front of the vehicle. Place jack stands under the frame rails and lower onto jack stands letting the front sus-
pension hang.
3. Remove the tires and wheels. Remove the 6 bolts holding the factory skid plate using a 15mm socket. Unplug the three
connectors going to the electric power steering. See Photo 1.
4. Retain factory hardware and front skid plate for reuse.
5. Using a 21mm wrench, remove the tie-rod nut as shown in Photo 2. Strike the front of the mount to dislodge the tie rod
end. Remove from the knuckle.
Photo 1
Strike here to dislodge tie rod end
6. Remove the sensor wire from the plastic clip. Remove the brake line bracket from the control arm using a 10mm wrench.
See Photo 3.
7. Remove and unplug the ABS sensor wire from the frame as shown in Photo 4.
Photo 3
Photo 2
Photo 4
8. Remove sway bar link with 15mm socket and wrench. Place jack stand under knuckle for support and then remove up-
per ball joint nut using a 18mm wrench. See Photo 5. Strike the knuckle as shown to dislodge the ball joint. Separate the
upper control arm from the knuckle.
9. Using a 18mm wrench, remove the upper strut nuts as shown in Photo 6. Retain factory hardware for reuse.
Photo 5
Photo 6
10. Using a 15mm wrench, remove the 2 bolts securing the lower strut mount to the lower control arm and remove the strut
from the vehicle. Retain stock hardware. See Photo 7.
11. Mark location of alignment cams on upper control arms to allow installation of new arm to same position. Using a
21mm wrench and 21mm socket, remove the upper control arms from the vehicle. See Photo 8. Retain the hardware.
Photo 7 Photo 8
12. Using a 18mm socket and wrench remove the four bolts holding in the factory cross member. Retain factory hardware.
13. Use a jack stand to support the front diff. Remove the front driver and passenger bolts holding the diff mount to the
frame with a 15mm and 18mm wrench. See Photo 9.
14. Lower the jack stand and pull down on the front of the diff to allow enough room to slide the two aluminum diff drop
spacer into place. Use the supplied 7/16” x 5” bolts, lock washers, and nuts. Tighten with a 16mm and 18mm socket
and wrench. See Photo 10.
Photo 9 Photo 10
15. On the driver side of the factory cross member measure from the end of the tube and make marks at 4.5” and 8” on the
front side as shown in Photo 11. Measure 1/4” for the bottom, and 2” from the back side and mark.
16. Using a die grinder and cut across the marks as shown in Photo 12. Hold the cross member into place and check clear-
ance between the cross member and front diff.
Photo 11
Photo 12
17. Insert factory hardware into the stock cross member and tighten with a 18mm socket and wrench. See Photo 13.
18. Place the strut in a strut compress and apply pressure on the coil spring. Place a alignment mark on the strut top and
one end of the lower bar pin, this will be used for later reference. Using a 18mm wrench remove the strut cap nut.
Slowly let pressure off the coil spring and disassemble strut. See Photo 14.
Photo 14 Photo 13
19. Place the supplied preload spacer between the lower coil seat and the plastic isolator ring as shown in Photo 15.
20. Place strut assembly back in spring compress, turn the alignment marks that you made earlier 180 degrees apart. This
will turn the bar pin in the correct location when the strut spacer is installed.
21. Using the supplied 10mm studs place each stud into the smaller sized holes in the strut spacer facing upward. Use the
supplied sleeve to slide over each stud to act as a spacer allowing you to pull the stud through the hole with the 10mm
nut and a 17mm wrench, locking the stud into place. Remove sleeve and repeat on the other five studs. See Photo 16.
Photo 16 Photo 15
22. Place the strut spacer on top of the stud and tighten using factory hardware and a 18mm wrench. See Photo 17.
27. Install the strut assembly in the factory mount with the supplied 10mm nuts/washers &lock-washers on the upper mount.
Tighten using a 17mm wrench. Note: Locking washer must be installed between nut and regular washer on
studs. See Photo 18.
Photo 18 Photo 17
28. Install the strut in the lower control arm using factory hardware and . See Photo 19. It may be necessary to jack up the
lower control arm with a floor jack to align lower strut holes.
29. Reinstall the sway bar on the lower control arm using a15mm wrench.
Photo 19
30. Reinstall the knuckle to the upper control arm with the supplied castle nuts/cotter pins. Tighten using 3/4” wrench to 50
ft/lbs. DO NOT OVER-TORQUE THE CASTLE NUT. Reinstall the tie rod end into the knuckle with factory hardware
and using a 21mm wench.
31. Install the brake line bracket on the new control arm with the supplied 1/4” lock nut / washer and using a 7/16” wrench.
See Photo 20. Driver side shown.
32. Reconnect the ABS wire that was disconnected.
33. Locate and install the new lower skid plate below the differential in the factory location with the factor hardware and us-
ing a 15mm wrench. See Photo 21.
34. Reconnect the three connectors going to the electric
power steering.
35. Reinstall the wheels/tires.
36. Jack up the vehicle and remove the jack stands.
37. Lower the vehicle to the ground.
Photo 20
Photo 21
REAR INSTALLATION
1. Chock the front wheels.
2. Place a floor jack under the differential and jack up the rear of the vehicle.
3. Place jack stands under the frame rails and lower onto the jack stands.
4. Remove the tires/wheels.
5. Remove the factory shock absorbers using a 21mm wrench & socket. Retain the factory hardware for reuse.
6. Remove the factory u-bolts using a 21mm socket, then remove the factory blocks. Lower the axle using the floor jack to
allow for the new 3” block to be installed.
Photo 1
Photo 2
7. Install the block on the factory spring pad with the flat part of the block on the spring and the thinner end towards the
front. Jack up the axle to meet the springs, making sure to align the center pin. See Photo 1
8. With the floor jack applying slight pressure to the rear axle to keep the pin aligned, install the new supplied u-bolts and
tighten in a crossing pattern, using a 7/8” socket.
9. Locate the new shock absorbers part # 658726, and install the shock absorbers in the factory mounting locations using
the factory hardware. Tighten using a 21mm wrench & socket. See Photo 2
10. Install the tires/wheels.
11. Jack up the vehicle to remove the jack stands. Remove the jack stands and lower the vehicle to the ground.
POST INSTALLATION INSTRUCITONS
1. Lightly grease the ball joints. Do not over grease the ball joint as this could cause ball joint boot failure.
2. Have a qualified alignment center align the vehicle immediately.
3. Have headlights adjusted to proper settings.
4. Wheels must be retighten at 50 miles.
5. All kit components must be retightened at 500 miles and then every three thousand miles after installation. Periodically
check hardware for tightness.
6. Install “Warning to Driver” decal on sun visor.
7. On some vehicles the front lower skirting will need to be trimmed if using certain wheel /tire combinations and with
heavy offset wheels. Trim only as needed.
Box Kit
1-Driver Side Control Arm
1-Pass Side Control Arm
2-Diff Brackets
1-Diff Lower Skid Plate
2-Strut Spacers
2-Preload Spacer
4-9/16” x 10 1/2” U-bolts
2-3” spacer blocks
2-Rear Shock Absorbers
1-10mmstudbag
1-275Bag1
1-275Bag2
Kit Poly Bag
2-7/16” x 5” Bolts
2-7/16” Washers
2-7/16” Lock Nuts
2-1/4” Nylocks
10MM Stud Bag
6-10mm Studs
6-10mm Lock Washers
7-10mm Hex Nut
6-10mm Washers
1-Spacer Sleeve
KIT CONTENT
Rear blocks & u-bolts
Lower skid plate
Pass. Upper
control arm
Diff bracket
Preload Spacer
Strut spacers
Diff bracket
Preload Spacer
Dr. upper
Control arm
Strut spacers
Thank you for choosing Rough Country for your suspension needs.
92278000
2014 4WD GM 1500 3.5” KIT WITH ALUMINUM KNUCKLES
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 rear cover of
these instructions. 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. 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 responsible for any product that is altered. If question exist we will be happy to answer any questions concerning the design, function, and correct use of our products.
**Note** This kit will not fit trucks with steel arms and knuckles.
**Note** The electric power steering must be unplugged before any of the steering components are removed. Failure to do
so may cause damage to the electric power steering.
This kit is packaged as a leveling kit—raising the front 3.5” and the back 1.75”. If you desire a different look or if the vehicle
has a tool box or added weight in the rear, please consult with your sales representative about other block and u-bolt options.
This suspension system was developed using a 32 x 11.5 tire with factory wheels. Examples of tire sizes that can be used
are 285/75R17, 285/65R18, or 285/55R20. Note if wider tires are used, offset wheels will be required and trimming may be
required.
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.
Tools Needed:
18MM Wrench
15MM Wrench
21MM Wrench
11MM Wrench
10MM Wrench
Floor Jack
Jack stands
Strut Compressor
Die Grinder
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 50ft/lbs 75ft/lbs
14MM 85ft/lbs 120ft/lbs
16MM 130ft/lbs 165ft/lbs
18MM 170ft/lbs 240ft/lbs
1.75” REAR LIFT KIT
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