rough country 92PERF1641 User Manual

rough country 92PERF1641 User Manual

4-inch suspension lift kit

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Thank you for choosing Rough Country for your suspension needs.
Rough Country recommends a certified technician installs 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 all the instructions before beginning the installation. Check the kit hardware against the parts
list. Be sure you have all the needed parts and understand where they go. Also please review the tools needed list
and make sure you have needed tools.
As a general rule, the taller a vehicle is the easier it will roll. We strongly recommend, because of rollover possibility,
that the vehicle be equipped with a functional roll-bar and cage system. Seat belts and shoulder
harnesses should be worn at all times. Avoid situations where a side rollover may occur.
Braking performance and capabilities are decreased when significantly larger/heaver tires and wheels are used. Take
this into consideration while driving. Also, speedometer recalibration is necessary when larger tires are installed.
Do not add, alter, or fabricate any factory or after-market parts which increase vehicle height over the intended height
of the Rough Country product purchased. Mixing component brands, lifts, and/or combining body lift with suspension
lifts voids all warranties. 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.
This 3 1/4" suspension system was developed for 33 x 12.5 tire on an after market 15x 8" wide wheel with 3.75" of
back spacing. The use of stock wheels with larger than stock tires may cause the tire to come in contact with the
lower control arm at full turn. The use of aftermarket wheels is recommended to avoid this. Due to the inconsistency
of vehicles when manufactured and the various options available, the amount of actual lift gained by this lift kit may
vary slightly. Longer shocks are needed on this kit. For optimum performance RCX 2.2 Series shocks are
highly recommended for full suspension articulation and optimum ride quality.
Any vehicle equipped with any Rough country product must have the "Warning to Driver" decal installed on the sun
visor or dash. The decal is to 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 to forward these in-
stallation instructions on to the vehicle owner for review and to be kept in the vehicle for its service life.
Tools Needed:
Spring Compressor
Silicone spray
T-55 Torx Head Bit
Floor jacks
Wheel chocks
Drill Motor
5/16" Drill Bit
7/16" Drill Bit
Torque wrench
T-55 Torx Head Bit
1/2" Socket / Wrench
9/16" Socket / Wrench
3/4" Socket / Wrench
13mm Socket /Wrench
15mm Socket / Wrench
18mm Socket / Wrench
21mm Socket / Wrench
Heavy duty jack stands
Safety glasses
97-06 JEEP TJ 3 1/4"PROGRESSIVE COIL/SPACER KIT
PRODUCT USE INFORMATION
NOTICE TO DEALER AND VECHICLE OWNER
Torque Specs:
Size
Grade 5
5/16"
15 ft/lbs
3/8"
30 ft/lbs
7/16"
45 ft/lbs
1/2"
65 ft/lbs
9/16"
95 ft/lbs
5/8"
135 ft/lbs
Size
Class 8.8 Class 10.9 Class 12.9
M8
18 ft/lbs
23 ft/lbs
M10
32 ft/lbs
45 ft/lbs
M12
55 ft/lbs
75 ft/lbs
M14
85 ft/lbs
120 ft/lbs
92PERF1641
Grade 8
20 ft/lbs
35 ft/lbs
60 ft/lbs
90 ft/lbs
130 ft/lbs
175 ft/lbs
27 ft/lbs
50 ft/lbs
90 ft/lbs
145 ft/lbs

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Summary of Contents for rough country 92PERF1641

  • Page 1 NOTICE TO DEALER AND VECHICLE OWNER Any vehicle equipped with any Rough country product must have the “Warning to Driver” decal installed on the sun visor or dash. The decal is to act as a constant reminder for whoever is operating the vehicle of its unique handling characteristics.
  • Page 2: Kit Content

    KIT CONTENT Front Poly Isolators Front Sway Bar Links Front Coil Springs And Sway Bar Brackets Kit pic Front 2.2 Shock Rear Sway Bar Links Rear Coil Springs Rear 2.2 Shock Rear Track Bar Bracket 03-06 KIT SHOWN W/ RCX PERFORMANCE 2.2 SHOCK ABSORBERS Kit Contents For Front Sway Bar Links 4 Cylinder:...
  • Page 3 FRONT INSTALLATION INSTRUCTIONS 1. The front-end components are installed first. 2. Place the vehicle on a level surface. Set the parking brake. Center the front wheels and chock rear wheels. 3. Remove the upper stud nut, retainer and grommet from both of the front shocks using a 15mm socket 4.
  • Page 4 14. Lightly grease and install the 12mm sleeves supplied on the bottom and top of the bent sway bar link. 15. Install the upper part of the new link in the hoop bracket with the 12mm bolts & flanged nut. See Photo 5. Tighten using a 18mm wrench.
  • Page 5 4. Install the new Rough Country progressive rate coil springs with the 3/4” coil spacer on top of the coil spring mak- ing sure the stock coil isolator is positioned in the upper mount. It may be necessary to use a coil spring or strut compressor to install the new coil springs.
  • Page 6 7. On the rear, slightly grease and insert the sway bar bushings PHOTO 12 and 10mm sleeves in the new rear extended sway bar links. Secure the links to the stock location with the supplied 10mm x 60mm bolt, washers and nuts supplied. See Photo 12. Tighten using a 15mm Socket / Wrench.
  • Page 7: Post-Installation Instructions

    POST INSTALLATION INSTRUCTIONS 1. Check the transfer case shifter to see if it will move to 4L. If PHOTO 1 not, the linkage will need adjusting. Place the shifter in 4L, loosen adjustment bolt and push the linkage forward until it stops.
  • Page 8: Troubleshooting Tips

    Possible Solution: Driveline vibrations can be caused from the removal or addition of the hardtop which changes the rear vehicle weight, and the rear height, which affects the rear drive shaft pinion angle. Rough Country adjustable upper control arms or upper rear cam bolts, will eliminate such vibrations by adjusting / rotating the rear pinion angle up or down as needed.

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