JKS 2570 - Manual (Page 2)

JKS Adjustable Coil Spacer Installation PN 2570 Page 2 of 4
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.
Depending on the application, it may be
necessary to completely or partially remove any
of the following components before spring can
be free from upper mount.
 Shock Absorber
 Swaybar
 Track Bar
 Emergency Brake Cable
 Brake Line
 ABS Wire

2. PREPARE UPPER SPRING MOUNT
 Remove the rubber isolator pad from the upper
coil spring mount on the chassis.
 Locate the small hole in the upper spring mount
that was previously concealed by the rubber
isolator pad.
 Position the flange end (concave) of the Main
Body (A) over the center portion (convex) of the
upper spring mount as illustrated below.
 Rotate the Main Body (A) until one of the holes
in the mounting flange aligns with the factory
hole in the upper spring mount.
 Using the Main Body (A) as a template,
accurately mark the four remaining hole
locations on the upper spring mount.
HINT: A transfer punch or similar tool is useful
for marking hole locations.
 Remove the Main Body (A) and drill a pilot hole
at each marked location u
sing a 1/4” drill bit.
Enlarge each hole with a 3/8” drill bit.
 Paint any exposed metal on the upper spring
mount to prevent corrosion.

3. INSTALL ACOS

ON UPPER
SPRING MOUNT
 Reposition the Main Body (A) of ACOS over the
center portion of the upper spring mount so that
all five mounting holes are in alignment.
 Insert a 5/16” x 3/4” Bolt (I) through each
mounting hole. HINT: Bolts must be inserted
from above upper spring mount so that bolt
threads point down as illustrated below.
 Loosely thread a 5/16” Nylock Nut (J) onto each
5/16” x 3/4” Bolt (I).
 Once all five bolts have been installed, tighten
the 5/16” Nylock Nuts (J) to 40 ft-lbs. using a
torque wrench.