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Fits Fits OE 17" and up rims
ONLY WITH OE TIRES
WARNING
Carefully read, understand and follow the instructions provided in this manual, and keep it in a safe place for future reference. If you have any doubt
whatsoever regarding the installation or maintenance of your Rancho suspension system, please see your retailer for assistance or advice. Failure to
follow the warnings and instructions provided herein can result in the failure of the suspension system, or can cause you to lose control of your vehicle,
resulting in an accident, severe personal injury or death.
INSTALLATION INSTRUCTIONS
For Rancho Suspension Systems:
RS66402B — 4½" Lift
2017-2013 Ram 1500 4WD
DOES NOT FIT VEHICLES EQUIPPED WITH AIR RIDE.
These instructions should remain in the vehicle glove box for future reference.
89402 Rev A
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Table of Contents
Related Manuals for RANCHO RS66402B
Summary of Contents for RANCHO RS66402B
- Page 1 Carefully read, understand and follow the instructions provided in this manual, and keep it in a safe place for future reference. If you have any doubt whatsoever regarding the installation or maintenance of your Rancho suspension system, please see your retailer for assistance or advice. Failure to follow the warnings and instructions provided herein can result in the failure of the suspension system, or can cause you to lose control of your vehicle, resulting in an accident, severe personal injury or death.
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Page 2: Operation
7) Install only tires approved by the United States Department of WARNING: READ ALL INSTRUCTIONS THOROUGHLY FROM Transportation (“DOT approved”). Make sure the rim and tire size are START TO FINISH BEFORE BEGINNING INSTALLATION. Failure to follow the warnings and instructions provided herein can result in an properly matched. -
Page 3: Important Notes
Thank you for purchasing the best suspension system available. For the best installed system, follow these instructions. If you do not have the tools or are unsure of your abilities, have this system installed by a certified technician. RANCHO IS NOT... -
Page 4: Specifications And Requirements
SPECIFICATIONS & REQUIREMENTS Shock Absorbers New Rancho shock absorbers must be used with this kit, and must be purchased Required Rancho Shock Absorbers separately Front Rear RS7810 RS7369 RS7000MT WARNING Use of the wrong shock absorbers can cause damage RS55810... - Page 5 HHCS, M12-1.75X60 RS94177 Rollover Warning Label RS7915 Washer, M12 RS94119 Consumer/Warranty Information RS7911 Nut, M12-1.75 Top Lock RS780281 6" Rancho Decal RS176653 Aft Diff Drop Bracket Warranty Tag R-RM0082-1112 RS860707 Sub Assy - Aft Diff Drop Bracket RS770107 HHCS, M12-1.75X35 RS7915...
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Page 6: Front Suspension
FRONT SUSPENSION Remove the bolt holding the brake hose to the frame. See Illustration 3. EHICLE REPARATION Park the vehicle on a level surface. Set the parking brake and chock rear wheels. Measure and record the distance from the center of each wheel to the top of the fender opening. - Page 7 TEERING NUCKLE EMOVAL Loosen the nut at the lower ball joint. Using removing tool 8677, separate the ball joint from the steering knuckle. Remove the brake caliper and its mounting bracket as See Illustration 7. an assembly. Hang the caliper assembly with wire or a tie wrap.
- Page 8 Support the lower control arm with a jack. RS602614 RS602641 Remove the three upper coil-over nuts. See Illustration 10. Do not remove the center rod nut. Illustration 12 Install boot in original location on rack and inner tie Illustration 10 rod.
- Page 9 Mounting Bolts Forward Mount Dampener Aft Mount Plug Illustration 14 Illustration 15 WARNING: DO NOT allow differential to be supported only by the right/passenger side axle tube mount. DO NOT allow any twisting or side Forward Mount loading of the right/passenger side axle tube mount. Damage to the differential axle tube can result without the damage being visible to you, resulting in loss of vehicle control and an accident.
- Page 10 Using the remaining hardware from kit RS860707, FRONT RS176651 loosely attach aft drop bracket RS176653 to the aft OE frame mount. See Illustration 21. Using OE hardware, loosely and the axle tube drop brackets RS176841 (forward half) and RS17634 (rear half) to the passenger side OE frame mount along with spacer RS176422 OR the OE dampener mount (if equipped).
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Page 11: Drive Shaft
Carefully compress the coil spring. Hold the shock shaft and remove the upper shock nut. Remove the shock. Assemble lower spring seat and OE jounce bumper on new Rancho shock absorber according to instructions RS176588B supplied with shock absorber. Illustration 25... -
Page 12: Steering Knuckle Installation
Insert shock assembly into coil spring. Install OE Attach dust shield, hub and ABS line (use tie-wrap) to isolator and mounting plate. See Illustration 28. Align right steering knuckle RS176231. Tighten hub bolts to reference marks and install upper nut. Tighten nut to 45 ft. 120 ft. -
Page 13: Rear Suspension
XTENDER NSTALLATION Apply thread lock to the original end link. Attach end link extender RS176419 to end link. See Illustration 32. Tighten extender securely. Attach the end link assembly to the sway bar with the original retainers, bushings and nut. Tighten nut to 20 ft. lbs. Repeat steps 1 and 2 for the other side. -
Page 14: Installation
End Link RS176698 Illustration 35 Illustration 34 Attach new Rancho shock absorbers to the upper and Install rear wheels and lower vehicle to ground. lower mounts. Torque to 100 ft. lbs. Tighten lug nuts to 130 ft. lbs. Repeat steps 4 and 5 for passenger side. - Page 15 Re-attach outer tie rod end RS602614 to tie rod NNER IF REQUIRED RS602641. As reference leave a .45 gap between jam nut NOTE: On some models it may be necessary to shorten the and tie rod end. Refer back to Illustration 12. tie rod to adjust toe to specifications.
- Page 16 55 LB-FT 75 LB-FT 90 LB-FT 9/16 95 LB-FT 130 LB-FT 85 LB-FT 120 LB-FT 145 LB-FT 135 LB-FT 175 LB-FT 130 LB-FT 165 LB-FT 210 LB-FT 185 LB-FT 280 LB-FT 170 LB-FT 240 LB-FT 290 LB-FT Rancho Technical Department 1-734-384-7804.