Installation instruc tio ns – Poison Spyder CJ ROCKBRAWLER REAR BUMPER WITH TIRE CARRIER User Manual

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INSTALLATION INSTRUC

TIO

Poison Spyder Customs • TJ-YJ-CJ ROCKBRAWLER REAR BUMPER

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• Pop rivet install tool
• Bearing seal driver or soft dead-blow

hammer

• Shop press or heavy hammer
• Loctite® 242 (blue) or equivalent thread

lock compound

• Anti-sieze thread lubricant
• Quality wheel bearing grease
• Wheel bearing grease packing tool OR the

skill to pack bearings by hand

• Latex or nitrile gloves
• Felt-tip fine point marker

INSTALLATION PROCEDURE
1. Park the Jeep on a flat, level surface and

set the parking brake.

2. Remove existing rear bumper. If it is

the stock bumper, use a T27 Torx driver to

remove the plastic bumper extensions, then

use an 18mm socket and ratchet remove

the large nuts/bolts from the frame rail side

brackets and along the bottom of the bumper.

Keep the OE hardware as some of it will be

re-used.

3. Remove the pre-installed 3/8-16 nylon

insert lock nuts and washers from the Bolt

Plates on the inside of the RockBrawler

bumper. Do not remove the Keeper Washers

that hold the Bolt Plates in place. Note that

there are several sets of unused bolt slots

on the bumper’s internal mounting surface.

These are for different Jeep models, please

disregard them for your application.

4. Install the RockBrawler bumper. The bolts

in the captured bolt plates will align with the

mounting holes in the Jeep’s frame/bumper

brackets. The Bolt plates are captured in

horizontal slots to allow for some adjustment

and manufacturing variances in the Jeep’s

frame. Install the provided 3/8-16 nylon

insert lock nuts and 3/8 flat washers on to

the threaded studs of the Bolt Plates, where

they protrude through the Jeep’s mounting

bracket. Do not fully tighten them at this time.

5. Use two (2) of the 10mm OE mounting bolts

(18mm wrench size) to bolt through the slots

located along the underside of the bumper

into the OE welded-in-place nuts inside the

rear crossmember. Do not fully tighten them

at this time.

6. With all hardware installed, check that the

bumper is level and correctly aligned with the

Jeep, as the slots in the Bolt Plates will allow

for a small amount of adjustment. It may be

easiest to slightly tighten each of the bolts

then use a soft dead blow hammer or rubber

mallet to lightly tap the bumper to make fine

adjustments.

7. Once the bumper is correctly levelled and

aligned, tighten all mounting bolts to 45 ft./

lbs.

NOTE: The photos shown in the following steps

depict the tire carrier installation on a JK version

of the RockBrawler Rear Bumper, however the

procedure is the same for the TJ/YJ/CJ version.
8. Use the two (2) supplied 3/16” pop rivets

to attach the crescent-shaped stainless steel

Lock Pin Slider Plate to the bumper at the

base of the hinge spindle.

FIGURE 7

9. Wearing latex or nitrile gloves, “Pack” the

two tapered roller bearings with a quality

wheel bearing grease by hand or with a

bearing packing tool. The two matching

bearing races are already pressed in to the

tire carrier hinge housing.

10. Wearing a latex or nitrile glove, use your

fingers to apply a light sheen of grease to the

bare metal surfaces of the inside of the tire

carrier hinge housing and bearing races, as

well as the hinge spindle on the bumper (do

not coat the threads for the spindle nut). This

will help discourage rust formation on these

bare metal surfaces.

11. Insert a Tapered Roller Bearing into the

pre-installed Lower Race, inside the Hinge

Housing. Ensure that it seats correctly and

This manual is related to the following products:

YJ ROCKBRAWLER REAR BUMPER WITH TIRE CARRIER TJ ROCKBRAWLER REAR BUMPER WITH TIRE CARRIER