ROUGH COUNTRY 921602000 Jeep 2020 JT Gladiator Mojave 3.5 Dual Rate Coil Spring Suspension Kit Owner’s Manual
- June 13, 2024
- Rough Country
Table of Contents
ROUGH COUNTRY 921602000 Jeep 2020 JT Gladiator Mojave 3.5 Dual Rate Coil
Spring Suspension Kit
Product Information:
-
Product Code: 921602000
-
Product Name: Jeep 2020 JT Gladiator Mojave 3.5 Dual Rate Coil
Spring Suspension Kit -
Manufacturer: Rough Country
Rough Country recommends that a certified technician install this suspension system. It is important to have professional knowledge of disassemble/reassembly procedures and post installation checks to ensure the integrity and operating safety of the vehicle. Attempting to install this system without proper knowledge and expertise may jeopardize the vehicle’s safety.
Before beginning the installation, read the provided instructions carefully. Check the kit hardware against the parts list to ensure you have all the necessary parts and understand their placement. Review the tools needed list and make sure you have the required tools.
As a general rule, taller vehicles are more prone to rolling. It is recommended to always wear seat belts and shoulder harnesses to enhance safety. Avoid situations where a side rollover may occur.
When using larger/heavier tires and wheels, braking performance and capability may decrease. Take this into consideration while driving. Do not add, alter, or fabricate any factory or after-market parts to increase the vehicle’s height beyond the intended height of the Rough Country product purchased. It is also not recommended to mix component brands.
Rough Country does not make any claims regarding lifting devices and excludes any implied claims. Any alteration made to the product will not be covered by warranty.
Every vehicle equipped with a Rough Country product should have a Warning to Driver decal installed on the inside of the windshield or on the vehicle’s dash. This decal serves as a constant reminder to the driver of the vehicle’s unique handling characteristics.
Product Usage Instructions
Tools Needed:
- 6mm Allen
- 8mm Socket
- 10mm Socket & Wrench
- 15mm Socket & Wrench
- 18mm Socket & Wrench
- 19mm Socket & Wrench
- 21mm Socket & Wrench
- 22mm Deep Well Socket
- 24mm Socket & Wrench
- Pliers
- 9/16 Socket & Wrench
- 3/4 Socket & Wrench
- Jack
- Jack Stands
- Torque Wrench
Prior to installing this kit, with the vehicle on the ground, measure the heights of your vehicle. Record the measurements from the center of the wheel straight up to the top of the inner fender lip for each corner of the vehicle (LF, RF, LR, RR).
Kit Contents:
Kit Box 649BOX1:
- 2 Front Sway Links
- 2 Front Bump Stop Spacers
- 2 Rear Sway Links
- 1 67730BAG2
- 1 63730BAG2
- 1 649INSTBAG Instruction Bag (Not Used)
- 1 1609BAG7 Forged Adjustable Track Bar
- 1 Instruction Sheet
Kit Box 60200BOX1:
- 2 Front Shock Brackets
- 2 Rear Shock Brackets
- 1 601INSTBAG
Kit Box 9420:
- 1 Dr Front Dual Rate Coil Spring
- 1 Pass Front Dual Rate Coil Spring
Kit Box 9421:
- 2 Rear Dual Rate Coil Springs
67730BAG2:
- 6 1/2 Flat Washer
- 4 12mm x 65mm Bolt
- 4 12mm Flange Lock Nut
63730BAG2:
- 2 3/8 Flat Washer (Not Used in 60100 kit)
- 2 3/8 x 2 Bolt (Not Used in 60100 kit)
- 2 Rr Spacer Mounting Washers (Not Used in 60100 kit)
- 2 12mm-1.75 x 65mm Bolts
- 2 12mm-1.75 Flange Lock Nuts
- 6 12mm Flat Washers
- 2 12mm-1.5 x 60mm Bolts
Jeep 2020 JT Gladiator Mojave 3.5” Dual Rate Coil Spring Suspension 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. 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
WARNING
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 re-sponsible for any product that is
altered.
This suspension system was developed using a 37×12.50×20 tire on a 20×9 wheel with -12 offset. Different wheel and tire combinations may be used but different tire manufactures designs may result in a tire width that could result in con-tact with the lower control arm and/or front sway bar link in a sharp turn. Please consult with your tire and wheel expert before purchasing. Also note that if wider tires are desired, offset wheels will be required. If question exist we will be happy to answer any questions concerning the design, function, and correct use of our products by calling 1-800-222-7023.
NOTICE
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.
Tools Needed:
- 6mm Allen
- 8mm Socket
- 10mm Socket & Wrench
- 15mm Socket & Wrench
- 18mm Socket & Wrench
- 19mm Socket & Wrench
- 21mm Socket & Wrench
- 22mm Deep Well Socket
- 24mm Socket & Wrench
Pliers
9/16” Socket & Wrench 3/4” Socket & Wrench Jack
Jack Stands
Torque Wrench
Prior to installing this kit, with the vehicle on the ground, measure the heights of your vehicle. This measurement can be recorded from the center of the wheel straight up to the top of the inner fender lip. Record the measurements.
LF:__ ,RF:_,
LR:__, RR:_
KIT CONTENTS
| Kit Box 649BOX1
---|---
Qty| Description
2| Front Sway Links
2| Front Bump Stop Spacers
2| Rear Sway Links
1| 67730BAG2
1| 63730BAG2
1| 649INSTBAG Instruction Bag (Not Used)
1| 1609BAG7
1| Forged Adjustable Track Bar
1| Instruction Sheet
| Kit Box 60200BOX1
---|---
Qty| Description
1| 60200BAG1
2| Front Shock Brackets
2| Rear Shock Brackets
1| 601INSTBAG
| Kit Box 9420
---|---
Qty| Description
1| Dr Front Dual Rate Coil Spring
1| Pass Front Dual Rate Coil Spring
| Kit Box 9421
---|---
Qty| Description
2| Rear Dual Rate Coil Springs
| 67730BAG2
---|---
Qty| Description
6| 1/2” Flat Washer
4| 12mm x 65mm Bolt
4| 12mm Flange Lock Nut
| 63730BAG2
---|---
Qty| Description
2| 3/8” Flat Washer (Not Used in 60100 kit)
2| 3/8” x 2” Bolt (Not Used in 60100 kit)
2| Rr Spacer Mounting Washers (Not Used in 60100 kit)
2| 12mm-1.75 x 65mm Bolts
2| 12mm-1.75 Flange Lock Nuts
6| 12mm Flat Washers
2| 12mm-1.5 x 60mm Bolts
| 1609BAG7
---|---
Qty| Description
2| 3/8” Flat Washer
2| 3/8” x 3” Bolt
2| 3/8” Flange Lock Nut
| 60200BAG1
---|---
Qty| Description
2| 3/8” Flange Lock Nuts
4| 3/8” Flat Washers
2| 3/8” x 1” Bolts
4| Sleeves
6| 14mm x 90mm Bolts
6| 14mm Nylock Nuts
2| 3/8” x 1.25” Bolts
2| Flag Nuts
12| 9/16” Flat Washers
Torque Specs:
Size | Grade 5 | Grade 8 | Size | Class 8.8 | Class 10.9 |
---|---|---|---|---|---|
5/16” | 15 ft/lbs | 20ft/lbs | 6MM | 5ft/lbs | 9ft/lbs |
3/8” | 30 ft/lbs | 35ft/lbs | 8MM | 18ft/lbs | 23ft/lbs |
7/16” | 45 ft/lbs | 60ft/lbs | 10MM | 32ft/lbs | 45ft/lbs |
1/2” | 65 ft/lbs | 90ft/lbs | 12MM | 55ft/lbs | 75ft/lbs |
9/16” | 95 ft/lbs | 130ft/lbs | 14MM | 85ft/lbs | 120ft/lbs |
5/8” | 135ft/lbs | 175ft/lbs | 16MM | 130ft/lbs | 165ft/lbs |
3/4” | 185ft/lbs | 280ft/lbs | 18MM | 170ft/lbs | 240ft/lbs |
FRONT INSTALLATION INSTRUCTIONS
-
Place vehicle in park and chock the rear wheels. Raise the front of the vehicle with a jack and secure a jack stand beneath each frame rail behind the front control arms. Ease the frame down onto the stands. Place the jack under the front axle for support when removing the coil springs.
-
Remove the front tires/wheels, using a 22mm deep well socket.
-
Mark and remove front driveshaft from axle using a 15mm socket. Hang the driveshaft up don’t let it fall or rest on the driveshaft boot or it could damage the boot.
-
Using a 21mm socket and wrench, remove the front track bar from the frame and axle. See Photo 1. Retain hard-ware for reuse.
-
Using an 18mm socket and wrench remove the bottom sway bar link bolts. Retain hardware for reuse. See Photo 2.
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Remove the upper and lower shock bolts using a 18mm socket and wrench. You may have to raise the axle with the jack and pull down on the shock to remove the lower bolt. See Photo 3. Retain stock hardware.
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Using a 15mm wrench, remove the brake line bracket from the lower control arm. See Photos 4 & 5. Retain hard-ware for reuse.
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Using pliers, remove the wiring harness from the upper control arm. See Photo 6.
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Using pliers, remove the axle vent tube from the differential housing. See Photo 7.
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Unplug the 4×4 actuator for slack. See Photo 8.
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Lower the jack slowly and remove the coil spring and spring isolator. See Photo 9.
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Using a 10mm wrench, remove the brake line bracket from the coil mount. Retain hardware for reuse. See Photo 10.
-
Install the supplied dual rate coil spring with the factory coil spring isolator. See Photo 11.
-
NOTICE
The Driver coil spring will have a “D” stamped on it. See Photo 12. -
Install the bump stop spacer into the lower coil mount. See Photo 12.
-
Place the supplied 3/8” x 3” bolt, washers, and nut (1609BAG7) through the spacer and coil mount. See Photo 13.
-
Torque to 30 ft-lbs. using 9/16” wrenches. See Photo 14.
-
Install the brake line bracket that was removed in step 14 on the lower coil mount using the factory hardware and a 10mm wrench. Torque to 5 ft-lbs.
-
Install the supplied shock extension bracket using the supplied 3/8” x 1” bolt, 3/8 washer, and 3/8” flange locknut (60200BAG1 )through the bottom hole of the bracket. Do Not Tighten. See Photo 15.
-
Place the supplied crush sleeve (60200BAG1) into the factory shock bracket. Install the factory shock hardware into the brackets and through the sleeve. See Photo 16.
-
Tighten the lower bolt using a 9/16” socket and wrench. Torque to 30ft/lbs. See Photo 17.
-
Using a jack to compress the suspension, install the shock in the extension bracket using the supplied 14mm x 90mm bolt, 9/16” washers, and 14mm nut (60200BAG1).
-
Tighten the factory bolt using an 18mm socket and wrench. Torque to 55ft/lbs. Then tighten the shock bolt using an 21mm socket and wrench. Torque to 85ft/lbs. See Photo 18.
-
Install the brake line bracket on the lower control arm using the factory hardware. Torque to 18 ft-lbs. using a 15mm wrench. Torque to 18ft/lbs. See Photo 19.
-
Remove the sway link from the sway bar using a 6mm Allen and an 18mm wrench. See Photo 20.
-
Install the new supplied bent sway link using the supplied 12mm x 65mm bolt, washer, and lock nut (67730BAG2). Install the bolt, with washer, through the link then the sway bar. The nut should be tightened against the sway bar. Torque to 55ft/lbs using an 18mm wrench and socket. Only turn the nut when tighten-ing. See Photo 21.
-
Clip the wiring harness into the upper control arm.
-
Attach the axle vent tube to the differential using a pair of pliers.
-
Plug-in the 4×4 actuator. See Photo 22.
-
Attach the sway bar links, to the axle, using the factory hardware and an 18mm socket and wrench. Torque to 55t/lbs.
-
Reinstall the front tires/wheels, using a 22mm deep well socket.
-
Lower the vehicle to the floor.
-
Attach the supplied 11061 track bar using the factory hardware and a 21mm socket and wrench. Torque to 120ft/lbs. Turning the steering wheel will help align the track bar and the mounting hole.
-
Retighten the lower control arms using a 21mm & 24mm wrench. Torque to 165 ft-lbs.
-
Retighten the upper control arms using a 18mm wrench. Torque to 55 ft-lbs.
REAR INSTALLATION INSTRUCTIONS
- Jack up the rear of the vehicle and support the vehicle with jack stands, so that the rear wheels are off the ground. Chock front wheels. Position a jack so it supports, but does not raise the rear axle.
- Remove the rear tires/wheels, using a 22mm deep well socket.
- Using a 21mm socket remove the track bar bolt at the axle. Retain the stock hardware for reuse. See Photo 1.
- Using a pair of pliers, disconnect the vent tube from the rear axle.
- Using an 18mm socket and 6mm Allen, disconnect the sway link from the sway bar. See Photo 2.
- Using a 10mm socket, remove the ABS bracket from the axle. Retain hardware. See Photo 3.
- Using an 8mm socket, remove the ABS sensor from the brake caliper bracket. Retain hardware. See Photo 4.
- Using an 18mm socket, remove the brake caliper bolts. Retain hardware. See Photo 5.
- Remove the brake caliper and hang out of the way. See Photo 6. Do not hang the caliper by the brake line.
- Support the rear axle using a jack or jack stands.
- Using a 21mm wrench and socket, remove the lower shock hardware. See Photo 7.
- Lower the axle and remove the rear coil springs. See Photo 8.
- Using 21mm wrench and 24mm socket, loosen (do not remove) the upper and lower control hardware at the axle. See Photos 9 & 10.
- Place upper coil spring isolator in the upper coil bucket and mark its orientation on the isolator and the upper coil bucket. See Photo 11.
- Align the upper coil isolator with the marks made in step 14 and install the supplied rear coil spring, making sure the spring is seated in the upper isolator and on the axle mount. See Photo 12.
- Install the rear shock bracket onto the bottom shock mount. Then place the supplied crush sleeve (60200BAG1) into the factory shock bracket and secure by using the supplied 14mm x 90mm bolt, 9/16” washers, and 14mm nut (60200BAG1). See Photo 13.
- Secure the shock to the bracket using the supplied 14mm x 90mm bolt, 9/16” washers, and 14mm nut (60200BAG1). See Photo 13.
- Install the supplied 3/8” flag nut (60200BAG1) into the axle bracket. See Photo 14.
- Secure the flag nut using the supplied 3/8-16 x 1.25 hex head bolt, 3/8 flat washer (60200BAG1). Tighten using a 9/16 socket. Torque to 30ft/lbs. See Photo 15.
- Tighten the shock and bracket hardware using an 21mm wrench and socket. Torque to 85ft/lbs.
- Using an 18mm socket, remove the upper sway link hardware.
- Install the supplied sway bar links, in the upper mount using the supplied 12mm x 60mm fine thread bolt and washer. Torque to 55ft-lbs using an 18mm socket. See Photo 16.
- Attach the sway link to the lower mount using the supplied 12mm x 65mm bolt, flat washer, and 12mm flange lock nut. Make sure to install the bolt, with washer, through the sway link then into the sway bar. The nut should tighten against the sway bar. Torque to 55 ft-lbs using an 18mm wrench and 19mm socket. Only turn the nut when tightening. See Photo 17.
- Torque the upper and lower control arm hardware to 217ft-lbs using a 21mm wrench and 24mm socket.
- Install the brake caliper using the factory hardware. Torque to 55ft-lbs using an 18mm socket.
- Install the ABS sensor into the brake caliper bracket using the factory hardware. Tighten using an 8mm socket.
- Attach the ABS wire bracket to the axle using the factory hardware. Adjust wire as needed. Tighten using a 10mm socket.
- Connect the axle vent tube to the axle using pliers.
- Reinstall the rear tires/wheels, using a 22mm deep well socket.
- Lower the vehicle to the ground.
- Reinstall the track bar in the factory location using the factory hardware, Torque to 130ft-lbs. using a 21mm wrench.
POST-INSTALLATION
- Confirm that the draglink was adjusted to the center steering wheel BEFORE the vehicle is driven. Failure to do so will cause a computer error, odd handling, and poor performance.
- Check all fasteners for proper torque. Check to ensure there is adequate clearance between all rotating, mobile, fixed and heated members. Check steering for interference and proper working order. Test brake system.
- Perform steering sweep. The distance between the tire sidewall and the brake hose must be checked closely. Cycle the steering from full turn to full turn to check for clearance. Failure to perform inspections may result in component failure.
- Re-torque all fasteners after 500 miles and recheck after 1000 miles. Alignment must be checked by a qualified me-chanic. Visually inspect components and re-torque fasteners during routine vehicle service.
- Readjust headlights to proper settings.
- Have a qualified alignment center realign the front end, to the factory specifications immediately.
Thank you for purchasing a Rough Country Suspension System.
By purchasing any item sold by Rough Country, LLC, the buyer expressly
warrants that he/she is in compliance with all applicable , State, and Local
laws and regulations regarding the purchase, ownership, and use of the item.
It shall be the buyers responsibility to comply with all Federal, State and
Local laws governing the sales of any items listed, illustrated or sold. The
buyer expressly agrees to indemnify and hold harmless Rough Country, LLC for
all claims resulting directly or indirectly from the purchase, ownership, or
use of the items.
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