1
PART #
DESCRIPTION
57840EP
22-UP TUNDRA 0-1” REAR 2.5 VS
CDEV RR PAIR
57840EP INSTALLATION INSTRUCTIONS
WARNING!
** READ ALL INSTRUCTIONS THOROUGHLY FROM START TO FINISH
BEFORE BEGINNING INSTALLATION! IF THESE INSTRUCTIONS ARE
NOT PROPERLY FOLLOWED SEVERE FRAME, SUSPENSION AND TIRE
DAMAGE MAY RESULT TO THE VEHICLE!
** ICON VEHICLE DYNAMICS RECOMMENDS THAT YOU EXERCISE
EXTREME CAUTION WHEN WORKING UNDER A VEHICLE THAT IS
SUPPORTED WITH JACK STANDS.
** ICON VEHICLE DYNAMICS RECOMMENDS ALL INSTALLATION TO
BE PERFORMED BY A PROFESSIONAL SHOP/SERVICE TECHNICIAN.
PRODUCT FAILURE CAUSED BY IMPROPER INSTALLATION WILL NOT BE
COVERED UNDER ICON’S WARRANTY POLICY.
1.
Lift vehicle and securely place heavy duty jack stands under the
manufacturer recommended lifting locations for the rear of the vehicle. Take
care when lifting the vehicle and allow 3-4” of ground clearance from the
tire. Remove front tires. NEVER WORK UNDER AN UNSUPPORTED VEHICLE.
Remove the wheels.
2.
Support the rear axle and remove the rear shocks.
3.
Remove the upper nut using an 8mm to hold the stud and 19mm to
remove the nut.
[FIGURE 1]
COMPONENTS INCLUDED
(1) 154874RED 22-UP TUNDRA 2.5 0-1” REAR VS
CDEV RR DRVR UNPKG
(1) 154874REP 22-UP TUNDRA 2.5 0-1” REAR VS
CDEV PASS UNPKG
HARDWARE INCLUDED
(2) 250003 10.00 UNIVERSAL RESI MT PLATE
CZINC
(2) 605144 3/8-12 X .750 FLANGED SELF TAP
BOLT CZINC
(1) 255604-16 EXTENSION HARNESS COIL 16-FT
(2) 605929 11 X 0.178 NYLON CABLE TIE, BLACK
(2) 611008 9/16 RXT HEAVY DUTY STEM
BUSHING KIT
(2) 611051 #36 1.188-2.750 STAINLESS HOSE
CLAMP KIT (4)
(1) 255604-20 EXTENSION HARNESS COIL 20-FT
(2) 605131 3/8 SPLIT LOCK WASHER GR8 YZINC
TOOLS REQUIRED
JACK
JACK STANDS
TORQUE WRENCH
RATCHETS
EXTENSION
DRILL
11/32 DRILL BIT
SHARPIE
8MM
17MM
19MM
9/16”
5/16” NUT DRIVER OR FLAT BLADE SCREW DRIVER
TECH NOTES
1. YOUR ICON SHOCK ASSEMBLIES COME FACTORY CHARGED TO 250 PSI. RELEASING NITROGEN
PRESSURE MAY LEAD TO SHOCK MALFUNCTION AND REDUCED RIDE QUALITY. FAILURE CAUSED BY
LOW NITROGEN PRESSURE IS NOT COVERED UNDER ICON’S WARRANTY POLICY.
2. BE CAUTIOUS WHEN LOWERING THE AXLE WITHOUT THE SHOCKS ATTACHED, THE BRAKE LINES
CAN BECOME STRETCHED AND CAUSE DAMAGE.
3. ESTIMATED INSTALL TIME: 1.5 HOURS
INSTALLATION
7929 Lincoln Ave. Riverside, CA 92504
Phone: 951.689.ICON | Fax: 951.689.1016
1-9-2023 REV.A
4.
Remove the lower bolt using a 17mm.
[FIGURE 2]
FIG.1
FIG.2
