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JKS Adjustable Coil Spacer Installation PN 2550 Page 1 of 3

Installation

Instructions

Product: Adjustable Coil Spacer (ACOS™)

Part Number: PN 2550

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.

Important

MOST VEHICLES REQUIRE additional parts

or modifications to accommodate the

immediate increase in ride height provided by

the ACOS system.

DO NOT EXCEED maximum range of

adjustment – see illustration on page 3.

Tools Required

 Metric/Standard Socket Wrench Set

 Torque Wrench

 8mm, 1/4" & 5/16” Allen Wrenches

 Tape Measure

 Medium Strength Threadlocker

 Spray Lubricant (WD-40 or similar)

 Anti-Seize Lubricant

 Hydraulic Floor Jack

 Transfer Punch (or equivalent)

 1/4” and 3/8” Drill Bits

 Coil Spring Compressor *

 Satin Black Spray Paint *

 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

Transfer Ring 2

Adjuster Ring 2

Threaded Tube (gold) 2

Isolator Pad 2

Bump Stop Support 2

Bump Stop 2

10mm x 110mm Cap Bolt 2

5/16” x 1-3/8” Cap Bolts 6

5/16” Nylock Nuts 6

PN 2200 (front application) pictured

Summary of content (3 pages)

PAGE 1
Important Installation Instructions MOST VEHICLES REQUIRE additional parts or modifications to accommodate the immediate increase in ride height provided by the ACOS system. DO NOT EXCEED maximum range of adjustment – see illustration on page 3. Product: Adjustable Coil Spacer (ACOS™) Part Number: PN 2550 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.
PAGE 2
Installation 1. REMOVE REAR COIL SPRINGS Remove the rear coil springs per the factory service manual instructions for your vehicle. HINT: A coil spring compressor is useful for removal. 3. DRILL UPPER SPRING MOUNT Remove the Adjuster Ring (B) and new Isolator Pad (D) from the pre-assembled ACOS unit. Rotate the Transfer Ring (A) on Threaded Tube (C) until top of Transfer Ring is just below top edge of tube.
PAGE 3
4. INSTALL ACOS ON UPPER SPRING MOUNT (cont.) Remove the10mm x 110mm Cap Bolt (G), Bump Stop (F), and Bump Stop Support (E) from upper spring mount and re-install Adjuster Ring (B) and Isolator Pad (D) onto the Threaded Tube (C). 5. SET ADJUSTER RING FOR DESIRED RIDE HEIGHT Once the Adjustable Coil Spacer is installed, rear ride height is determined by measuring the distance between top of Transfer Ring (A) and bottom of Isolator Pad (D), and subtracting 1/4” (0.25 in.). 6.