JKS 2570 User Manual
Installation instructions
JKS Adjustable Coil Spacer Installation
PN 2570
Page 1 of 4
Installation
Instructions
Product: Adjustable Coil Spacer (ACOS
™)
Part Number: PN 2570
Application: Jeep Wrangler JK, 2007+ (rear only)
Welcome
CONGRATULATIONS on your purchase
of a new JKS ACOS
™ system! At 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.
Before You Begin…
1. Familiarize yourself with the supplied parts
as illustrated in the column to the far right.
2. Thoroughly read all procedures to ensure
you have the tools and experience
necessary to complete this installation.
3. If you are not completely comfortable with
any of the procedures described on the
following pages, do not attempt this
installation. Contact the JKS Technical
Department at (308) 762-6949 to locate a
qualified installation specialist in your area.
Important
MOST VEHICLES REQUIRE additional parts
or modifications to accommodate the
immediate increase in ride height provided by
the ACOS
™ system.
REAR CONTROL ARMS MUST BE same
length as original equipment arms to ensure
proper bump stop alignment and coil spring
clearance
– see section 6 for details.
DO NOT EXCEED maximum range of
adjustment
– see illustration on page 3.
Tools Required
Hydraulic Floor Jack and Jack Stands
Metric/Standard Socket Wrench Set
Torque Wrench
Transfer Punch (or equivalent)
1/4” and 3/8” Drill Bits
1/4” Allen Wrench
Tape Measure
Spray Lubricant (WD-40 or similar)
Anti-Seize Lubricant
Medium Strength Threadlocker
Satin Black Spray Paint
Coil Spring Compressor *
Plasma Cutter *
Grinding Wheel *
Welding Equipment *
Factory Service Manual (recommended)
* 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
DESCRIPTION
QTY
A Main Body
2
B Adjuster Ring
2
C Isolator Pad
2
D Bump Stop Adapter
2
E 10mm Locking Nut
2
F Bump Stop Plug
2
G Polyurethane Bump Stop
2
H 10mm x 55mm Cap Bolt
2
I
5/16” x 3/4” Bolt
10
J 5/16” Nylock Nut
10
K 3/8” x 1-1/4” Cap Bolt
2
L Coil Spring Retainer
2
M 7/16” x 1-1/2” Flathead Socket Screw
2
N 7/16” Flat Washer
2
O 7/16” Nylock Nut
2