Refer to
Frame Insulators Description
for information on conditions that result from
improper installation or frame insulators. Removing any one frame
insulator requires loosening the adjacent frame insulators
in order to permit the frame to separate from the body.
Replace the insulators carefully in order to avoid the following conditions:
• | Breaking the plastic fan shroud |
• | Damaging the frame attachments (steering hoses, brake pipes) |
If the frame insulator bolt does not screw in smoothly, run a tap through
the cage in the body in order to remove the foreign material. Ensure that
the tap does not punch through the underbody. Position the insulator and
the metal washer in order to prevent contact with the frame rail. Do not
over tighten the insulator nut. Overtightening the nut may strip the cage
nut.
Removal Procedure
Important: Perform the procedure exactly as specified, regardless of whether you
will replace all of the insulators or only one of the insulators.
- Raise the vehicle using a frame contact hoist. Refer to Lifting and Jacking the Vehicle
in
General Information.
- Support the frame near the insulator using jackstands.
- Remove the following components
from the insulator (4):
| Important: If working on position #2 or #3, other insulator mounting bolts must
be removed to remove insulator.
|
- Loosen other insulator bolts.
- Remove the lower insulator (4).
- Raise the body slightly.
- Remove the following components:
• | The upper insulator (2) |
Installation Procedure
- Install the following
components:
• | The upper insulator (2) |
- Lower the body to the frame.
- Install the lower insulator (3).
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Install the following components:
Tighten
Tighten the insulator bolts to 191 N·m (141 lb ft).