Rough Country 720.20 User Manual
92720200
07-13 GM 2” FRONT & 4” REAR LOWERING KIT
Thank you for choosing Rough Country for all 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 kit contents list on the back
page. Be sure you have all needed parts and know where they go. Also please review tools needed list and make sure
you have the tools needed to install the kit.
PRODUCT USE INFORMATION
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 decrease vehicle
height over the intended height of the Rough Country product purchased. Mixing component brands is not recommended.
Rough Country makes no claims regarding lowering 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 use of our products.
NOTICE TO DEALER AND VEHICLE OWNER
INSTALLING DEALER / OWNER - It is your responsibility to install the warning decal and forward these installation instructions on to the vehicle owner for review. These instructions should be kept in the vehicle for its service life.
Tools Needed:
24mm Wrench
22mm Wrench
21mm Wrench
18mm Wrench
15mm Wrench
13mm Wrench
12mm Wrench
10mm Wrench
8mm Allen Wrench
Drill Motor
Drill Bit 11/32
Drill Bit 15/32
Vise Grips
Die grinder
Floor Jack
Jack Stands
FRONT INSTALLATION INSTRUCTIONS
1. Lift the front of the vehicle using a jack and support the vehicle with jack stands, so that the front wheels are off the ground
2. Remove the front tires/wheels., using a 21mm deep well socket
3. Loosen the (3) nuts on top of the strut using an 18mm wrench as shown in Photo 1. Do not remove nuts completely.
4. Remove lower strut bolts using a 15mm wrench as shown in photo 2.
PHOTO 1
PHOTO 2
5. Remove them bolt clips from the strut as shown in Photo 3.
6. Use disc sander on the front right corner relative to the front of vehicle and grind corner off bar pin to fit as shown in Photo 4.
PHOTO 3
PHOTO 4
7. Position the strut to bottom of the control arm. Using the provided 1/4” spacer, place between control arm and bar pin as shown
in photo 5. Flat side of plate will face the inside of vehicle as shown.
8. Using the provided 7/16” grade 9 bolts, nuts and washers install as shown in Photo 6. Using a 5/8” & 11/16”, torque 60 ft/lbs.
PHOTO 5 PHOTO 6
*ONLY USE PROVIDED 7/16 GRADE 9 BOLTS*
DO NOT REPLACE
9. Retighten upper strut bolts to correct torque spec with 18mm wrench. Install the wheels / tires, using a 21mm deep well socket.
Repeat steps 3-9 on Driver Side.
10. Jack up the vehicle and remove the jack stands. Lower the vehicle to the floor and torque all bolts to factory specifications.
REAR INSTALLATION INSTRUCTIONS
1. Lift the rear of the vehicle using a jack and support the vehicle with jack stands, so that the rear wheels are off the ground.
2. Remove the rear tires/wheels., using a 21mm deep well socket.
PHOTO 1
3. Remove bump stop. Using a cutoff wheel, cut all 4 sides of the bump stop and remove as shown in Photo 1.
4. Using the 2 existing “underneath” welds on the frame, measure to center and mark for new bump stop location. Photo 2.
5. Drill a 11/32” hole and install the stock bolt along with the factory bump stop.
6. Using a 21mm socket and wrench, remove the shocks. Retain hardware for re-use with new provided RC shock. Photo 3.
7. Remove the bolt holding the brake line bracket to the rear-end. Photo 4.
PHOTO 3
PHOTO 2
PHOTO 4
8. Supporting rear axle, use a 21mm socket and remove the u-bolts on both driver and passenger side. Photo 5.
9. On the passengers side, using a 24mm wrench for nut and a 12mm for bolt on front 21mm for nut and 10mm for bolt on rear,
remove the leaf spring bolts and remove from vehicle. See photo 6 *note* If equipped with tow hitch, this must be removed
PHOTO 5
10. Using same wrenches as passenger side leaf, remove the rear bolt in the frame mount and the shackle on the drivers side. Only
loosen the front bolt only. Do not remove!
11. Carefully slide the rear end toward the passengers side keeping the axle firmly on the stands for support.
12. Swing the drivers side leaf out and under the axle.
PHOTO 6
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