JKS 8100 User Manual
Product: 1" Budget Motor Mounts
Part Number: JKS8100
Applications: Wrangler TJ, 1997+ 4.0L, 2.5L, 2.4L ONLY
INSTALLATION
Wrangler YJ, 1987-95 4.2L, 4.0L, 2.5L ONLY
INSTRUCTIONS
517-278-1226 • tech@jksmfg.com • www.jksmfg.com
491 W. Gareld Avenue, Coldwater, MI 49036
Welcome
CONGRATULATIONS on purchasing Budget Motor
Mounts from JKS Manufacturing. We are committed
to providing you with the best products available and
your satisfaction is our rst priority.
PLEASE READ these Installation Instructions carefully, and save them for future reference, as they contain
important installation and maintenance information.
Important
MUST BE INSTALLED one side at a time.
MUST BE INSTALLED in conjunction with,
or following, the installation of a body lift.
OE MOTOR MOUNT BUSHINGS must be in good
condition. If worn or questionable, new motor mounts
must be installed.
Tools Required
Parts
Description Part # QTY
A
Motor Mount Spacer 03084 2
B
Bolt Extension 03085 2
C
M10 x 60mm Bolt 40700 2
D
M10 Split Washer 40253 2
E
M10 Flat Washer 40223 2
Metric/Standard Socket Wrench Set
15mm and 18mm Open End Wrenches
Torque Wrench
Pliers or Vice Grips
Hydraulic Floor Jack
Wire Brush and/or Chemical Cleaner (to clean
bolt threads)
Die Grinder with Cut-Off Wheel or similar cutting tool
(for cutting OE insulator stud)
Anti-Seize Lubricant
Factory Service Manual (recommended)
* Asterisk denotes tools that are not required for some applica-
tions. Thoroughly read instructions rst to determine which tools
will be required for your application.
Installation
1. SUPPORT ENGINE
Place a hydraulic jack beneath vehicle and choose
one of the following locations as a lifting point for
engine:
Position jack beneath transmission bell housing
with block of wood to distribute engine weight.
– or –
Position jack beneath mounting ange of engine
oil pan with block of wood to distribute weight
across oil pan bolts.
IMPORTANT: Do NOT attempt to lift the engine by the
engine oil pan.
JKS8100JKS 1" Budget Motor Mount Installation
Page 1
Carefully raise the hydraulic jack just enough to
remove the weight of the engine from the engine
mounts.
2. REMOVE OE ENGINE MOUNT
Remove nut from cross bolt that secures the rub-
ber insulator to the engine support bracket. DO
NOT REMOVE cross bolt yet.
Remove the original retaining bolt and nuts that
secure the rubber insulator to the chassis. Retain
original nuts.
Remove cross bolt and insulator from vehicle.
IMPORTANT: If vehicle is equipped with air conditioning, the condenser pump will not allow adequate
space to remove the cross bolt. Therefore, it will be
necessary to remove the entire engine support bracket assembly from the engine.
3. INSTALL MOTOR MOUNT SPACERS
Using a wire brush and/or chemical cleaner, thor-
oughly clean threads of stud protruding from base
of rubber insulator.
Using a cutting tool, remove 1/4” from length of
OE insulator stud. HINT: Use care to avoid damaging threads.
Thread supplied Bolt Extension (B) onto insulator
stud. Use pliers or vice grips to ensure Extension
completely threads onto stud until seated against
bottom of insulator.
Slip Motor Mount Spacer (A) over the Bolt Exten-
sion (B) and re-position engine mount assembly
on the chassis.
IMPORTANT: If vehicle is equipped with air conditioning, it will be necessary to reinstall the engine support
bracket on the engine at this time.
Apply anti-seize lubricant to threads of M10 x
60mm Bolt (C) and insert with M10 Washers
(D&E) into remaining mounting hole.
Loosely thread the original 10mm nuts onto Bolt
Extension (B) and M10 x 60mm Bolt (C) to secure
engine mount to chassis.
Adjust height of hydraulic jack to align rubber insu-
lator with engine support bracket.
Re-install original cross bolt and nut to secure rub-
ber insulator to engine support bracket. DO NOT
TIGHTEN yet.
2 Page
JKS8100
JKS 1" Budget Motor Mount Installation
Loading...