JKS 7101 - Manual (Page 2)

JKS7101 JKS Adjustable Control Arm Installation 2 Page
 Remove the rear upper suspension arm nut and
bolt from the axle housing bracket. Retain the
original mounting hardware.
 Remove the nut and bolt from the chassis rail
bracket. Retain the original mounting hardware.
 Remove original rear upper suspension arm.
‰ 2. SET CONTROL ARM LENGTH
Adjustable Control Arms are fully collapsed when supplied
from JKS and must be adjusted to the desired lengths
before installation.
The working length of each upper Control Arm can be
increased (up to 3.75” longer), decreased (up to 0.25”
shorter), or exactly the same as the OE suspension arm.
 Determine ideal Control Arm length for your ap-
plication by considering factors such as:
 Length of OE suspension arm
 Tire Clearance
 Pinion Angle
 Rotate adjustable end of Control Arm until the
desired length is achieved.
 Adjust corresponding Control Arm to exact same
length.
‰ 3. INSTALL CONTROL ARM
 Apply anti-seize lubricant to bolt threads of original
mounting hardware.
 Mount the non-rotating (BLACK) end of Adjustable
Control Arm to the chassis rail bracket with the
greaseable fitting facing UP.
 Install the original mounting bolt and finger tighten
the nut. DO NOT torque mounting hardware
until instructed.
 Mount the rotating (GOLD) end of Adjustable Con-
trol Arm to the axle housing bracket.
 Install the original mounting bolt and finger tighten
the nut. DO NOT torque mounting hardware
until instructed.
HINT: If mounting bolt is difficult to install due to
misalignment of Control Arm bushing with mount-
ing bracket, either (1) adjust height of axle hous-
ing with hydraulic jack, (2) move axle housing into
position with a heavy-duty ratchet strap, or (3)
temporarily disconnect track bar until mounting
holes align.
 Attach the parking brake cable and ABS wiring (if
equipped) to the upper Control Arm with plastic
wire ties or equivalent.
‰ 4. TIGHTEN MOUNTING HARDWARE
 Once all Adjustable Control Arms have been
properly installed, lower the vehicle to the ground
until coil springs are supporting the full weight of
vehicle.
 Using a torque wrench, tighten the mounting hard-
ware to the factory torque specifications for your
vehicle.
Wrangler TJ, 1997-06
 Tighten bolt at REAR axle and chassis brack-
ets to 55 ft-lbs.
Grand Cherokee ZJ, 1993-98
 Tighten bolt at REAR axle and chassis brack-
ets to 55 ft-lbs.
‰ 5. POST-INSTALLATION INSTRUCTIONS
 Adjustable Control Arms are supplied pre-lubri-
cated, although it will be necessary to add more
grease after they have been adjusted and installed
on the vehicle. Refer to Maintenance section for
specific lubrication instructions.
 If installing front Adjustable Control Arms at same
time, have vehicle professionally aligned before
driving on highway.
Maintenance
Control Arms should be greased regularly as part of
vehicle maintenance schedule. Lubricate using moisture
resistant marine style grease and a hand-pump grease
gun. DO NOT use a pneumatic grease gun. Add grease
slowly until resistance is felt. The internal spring-loaded
seal can be damaged by forcing too much grease into
Control Arms.
©2013 JKS Manufacturing, Inc & Aftermarketing, LLC
Revision Date 10/30/2013