JKS 1100 - Manual (Page 2)

JKS1100 JKS Adjustable Bump Stop Installation 2 Page
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Installation
‰ 1. REMOVE COIL SPRINGS
 Raise and support the vehicle chassis with jack
stands.
 FRONT INSTALLATION – Position behind
front lower suspension arm brackets.
 REAR INSTALLATION – Position in front of
rear lower suspension arm brackets
 Remove the 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 neces-
sary to completely or partially remove any of the
following components before spring can be free
from upper mount. HINT: Refer to factory ser-
vice manual for procedures not covered in these
instructions.
 Shock Absorber
 Swaybar
 Brake Line
 ABS Wire
 Lower Suspension Arm
 Track Bar
 Steering Drag Link
 Spring Retainer Clip
‰ 2. PREPARE LOWER SPRING MOUNT
 Locate the dimple in the center of the lower spring
mount on the axle housing.
 Using the dimple as a guide, drill a 27/64” hole
through the center of the lower spring mount.
 Tap the hole with a 1/2” NC x 13 TPI tap.
‰ 3. DETERMINE BUMPSTOP LENGTH
JKS Adjustable BumpStops can be installed in six (6)
possible configurations (0.75”, 1.25”, 2.00”, 2.75”, 3.25”, or
4.00”), depending on the individual spacer(s) used.
 Determine the ideal BumpStop length for your ap-
plication by considering factors such as:
 Clearance between vehicle tires and body panels
during full suspension compression
 Clearance between axle housing and chassis or
drivetrain during full suspension compression
 Length of existing bump stop extension, if installed
 Choose the spacer(s) that provides maximum,
unobstructed suspension compression for your
application from the list below.
0.75” BumpStop Configuration
SPACER: 0.75” only
HARDWARE: 1/2” x 1-1/4” Bolt + Split Washer
1.25” BumpStop Configuration
SPACER: 1.25” only
HARDWARE: 1/2” x 1-1/2” Bolt + Split Washer
2.00” BumpStop Configuration
SPACER: 2.00” only
HARDWARE: 1/2” x 2” Stud only
2.75” BumpStop Configuration
SPACERS: 2.00” + 0.75”
HARDWARE:
1/2” x 2” Stud + 1/2” x 1-1/4” Bolt + Split Washer
3.25” BumpStop Configuration
SPACERS: 2.00” + 1.25”
HARDWARE:
1/2” x 2” Stud + 1/2” x 1-1/2” Bolt + Split Washer
4.00” BumpStop Configuration
SPACERS: 2.00” + 1.25” + 0.75”
HARDWARE:
1/2” x 2” Stud + 1/2” x 2-1/2” Bolt + Split Washer