JKS OGS125 User manual

JKS Adjustable Trackbar Installation PN OGS125 / OGS126 Page 1 of 3
Installation
Instructions
Product: Adjustable Trackbar
Part Number: PN OGS125 / OGS126
Welcome
CONGRATULATIONS on purchasing a new
Adjustable Trackbar from JKS Manufacturing.
We are committed to providing you with the
best products available and your satisfaction is
our first priority.
PLEASE READ these Installation Instructions
carefully, and save them for future reference,
as they contain important installation and
maintenance information.
Important
NOT COMPATIBLE WITH right hand drive
vehicles.
CHECK TORQUE SPECIFICATIONS
regularly.
Tools Required
Metric/Standard Socket Wrench Set
Torque Wrench
Tie Rod End Remover *
Tape Measure
1-7/16” Open-End Wrench
9/16” Drill Bit
Flat Metal File *
Heavy Duty Ratchet Strap *
Anti-Seize Lubricant
Grease Gun with Zerk Fitting Coupler
Wheel Bearing Grease
* Asterisk denotes tools that are not required for some
applications. Thoroughly read instructions first to
determine which tools will be required for your
application.
Parts
A OE Rubber Bushing
B Male Threaded (Axle) End
C 1” NF Jam Nut
D Female Threaded (Chassis) End
E 9/16” SAE Flat Washer
F Preload Washer
G 9/16” NF GR8 Ovalok Nut
H Polyurethane Bushing
I Snap Ring
J 9/16” x 4-1/2” GR8 Greaseable Bolt
K Preload Washer
L 2.5” Johnny Joint Ball
M Polyurethane Bushing
N Tapered Split Cone

JKS Adjustable Trackbar Installation PN OGS125 / OGS126 Page 2 of 3
Installation
1. REMOVE ORIGINAL EQUIPMENT
(OE) FRONT TRACK BAR
Remove front track bar and mounting hardware
per the factory service manual instructions for
your vehicle. HINT: If difficult to remove, use
universal puller tool to separate OE track bar
ball stud from chassis rail bracket.
2. MOUNT ADJUSTABLE TRACKBAR
TO CHASSIS BRACKET
Using a 9/16” drill bit, enlarge the tapered
mounting hole in the chassis rail bracket located
on the driver-side of the vehicle.
Locate Chassis End (D) of Adjustable Trackbar
and insert the 9/16” x 4-1/2” Greaseable Bolt (J)
through the Johnny Joint spherical bushing (L).
Place the Tapered Split Cone (N) over the bolt
threads with the narrow end facing away from
the trackbar.
Apply anti-seize lubricant to bolt threads.
Mount chassis end of Adjustable Trackbar to
chassis rail bracket by inserting the
9/16” x 4-1/2” Greaseable Bolt (J) upwards into
enlarged hole. Secure with 9/16” Flat Washer –
only if required – (E) and 9/16” Ovalok Nut (G).
IMPORTANT: Flat Washers are supplied for use
with 1984-01 Cherokee XJ and 1993-1998 Grand
Cherokee ZJ models ONLY. Do NOT use Flat
Washer on Wrangler TJ models.
HINT: Tapered Split Cone (N) should be located
between flange of spherical bushing (L) and
mounting surface of chassis rail bracket, with
the narrow end of tapered cone facing up
towards chassis.
Tighten 9/16” x 4-1/2” Greaseable Bolt (J) to
110 ft-lb. using a torque wrench.
IMPORTANT: The upper flange of spherical
bushing must fit flush against the chassis rail
bracket. If any gap exists, it will be necessary to
file the bottom edge of the Tapered Split Cone
until completely flush with bottom of chassis rail
bracket.
3. CENTER FRONT AXLE HOUSING
The front axle housing must be in perfect lateral
alignment with vehicle chassis before Adjustable
Trackbar installation can be completed.
Before you center the axle housing, make sure
the vehicle is at normal ride height, on level
ground, with the suspension supporting the full
vehicle weight.
Determine if the axle housing is centered by
measuring the distance between the tire and
chassis, using the exact same points on each
side of the vehicle to ensure accuracy.
HINT: For example, measure from the edge of a
tire tread lug to the outboard side of the
chassis, then repeat the measurement on the
other side of vehicle using the exact same
points.
If the two measurements are equal, the axle is
centered. If the measurements vary, divide the
difference in half to determine the amount of
adjustment required. HINT: If the axle housing
is not centered, the chassis can be laterally
shifted using either of the following methods.
Ratchet Strap (preferred)
Attach a heavy duty ratchet strap to the
chassis on one side of the vehicle, and to
the axle housing on the other side.
Tighten the strap in small increments to pull
the chassis in alignment with the axle.
Take measurements after each adjustment
until centered.
Steering Wheel
Have a partner turn the steering wheel in
small increments to shift the vehicle
chassis side-to-side.
After each adjustment, have your partner
hold the steering wheel steady while you
take measurements.

JKS Adjustable Trackbar Installation PN OGS125 / OGS126 Page 3 of 3
4. SET ADJUSTABLE TRACKBAR
LENGTH AND MOUNT TO AXLE
IMPORTANT: The length of the Adjustable
Trackbar must be set with axle housing perfectly
centered and the vehicle at normal ride height.
With the axle housing centered beneath the
chassis, adjust the length of Adjustable
Trackbar by rotating the axle end until the
rubber bushing aligns with the mounting holes
on the axle bracket.
Install Axle End (B) of Adjustable Trackbar to
the axle bracket by securing with the original
mounting bolt and flag nut. Apply anti-seize
lubricant to bolt threads.
Take measurements again to ensure axle
housing is perfectly centered and make any
final adjustments if necessary.
Check the Chassis End (D) of Adjustable
Trackbar to ensure it is aligned with the chassis
rail bracket. If necessary, rotate fore/aft until the
space between the trackbar and chassis rail
bracket is even.
IMPORTANT: The Chassis End of Adjustable
Trackbar must be in the “neutral” position (as
illustrated above) before the Jam Nut is
tightened.
Once all adjustments are complete, fully tighten
the Jam Nut (C) to prevent Adjustable Trackbar
length from changing. HINT: It may be easier to
tighten Jam Nut with the Adjustable Trackbar
removed from the vehicle.
Tighten original mounting bolt on axle bracket to
50 ft-lb. using a torque wrench.
5. LUBRICATE ADJUSTABLE
TRACKBAR
Lubricate the 9/16” x 4-1/2” Greaseable Bolt (J)
at the chassis end of Adjustable Trackbar using
common wheel bearing grease or equivalent.
Maintenance
Re-torque fasteners after driving 150 miles. Continue to
check torque specifications as part of regular vehicle
maintenance routine.
The chassis end of the Adjustable Trackbar features a
spherical polyurethane bushing which is both greaseable
and rebuildable. Lubricate the bushing via the
9/16” x 4-1/2” Greaseable Bolt (J) regularly as part of
vehicle maintenance schedule.
Regular cleaning with pressurized water is
recommended to maximize ease of operation and
reliability. Always lubricate afterwards to evacuate any
moisture.
2011 JKS Manufacturing, Inc & Aftermarketing, LLC
Revision Date 5/13/2011