MBRP Off Camber Fabrications 183100 User manual

183100 © 06/18 PAGE 2 OF 4
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
REMOVAL OF STOCK REAR BUMPER
1. Remove the flange bolts (5 each side) securing the hitch structure to
the vehicle frame rails. Refer to Figure 1.
2. Disconnect the main wiring harness and the trailer wiring connection
from the rear bumper.
3. Remove the rear bumper from the vehicle by working the locating
pins on the structure mounting brackets out through the positioning
slots of the frame rails. Refer to Figure 2.
4. Disassemble the components of the bumper. Remove the step pad by
disengaging the snaps (Refer to Figure 3), then unbolt the steel
frame and corner assemblies from the hitch structure.
5. Remove the wiring harness from the lights and any sensors. It will be
reused.
6. Remove the towing electrical socket from the stock bumper. It will be
reused.
7. Remove the license plate light lenses by pushing in the side tabs (take
care not to break the tabs). The lights and lenses will be reused on the
new bumper.
8. If the stock bumper is equipped with blind-spot sensors or sonar
parking sensors, remove the corner claddings to access and remove
them (they will be reused)*. Refer to Figure 4.
*Please note that, MBRP cannot guarantee the proper function of the sensors
once removed from the OEM bumper and reinstalled onto the OCF bumper. While
the sensors have been sho n to ork properly ith the OCF bumper, issues or
malfunctions can arise due to sensor calibration and environmental conditions,
particularly ith the blind-spot monitor (BSM) units. Also, removal of OEM
sensors from the stock bumper may void the OEM arranty.
INSTALLATION OF THE OCF BUMPER
1. Reinstall the hitch structure to the vehicle frame rails, replacing
the previously removed stock flange bolts (10).
Refer to Figure 5.
2. Assemble the LHS Bumper Assembly to the RHS Bumper
Assembly using two (2) M10 Hex Bolts and M10 Nuts with four
(4) 10mm Washers in the connection flange holes, and the M8
Hex Bolt, M8 Hex Nut, and two (2) 8mm Washers in the front
tab holes. Tighten the hardware. Refer to Figure 6.

183100 © 06/18 PAGE 3 OF 4
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
3. Place the assembled bumper onto the hitch structure and align
the holes in the top plate to the threaded holes of the structure,
then thread the Hex Head SEMS Bolts into each hole.
Refer to Figure 7.
4. Position the bumper in the desired position and then tighten the
Hex Head SEMS Bolts.
5. Insert the license plate light assembly into the designated cut-outs
on the bumper (note that the alignment tab and slot need to line
up). Refer to Figure 8.
6. Insert the towing electrical socket into the provided cut-out.
Connect the towing wiring harness to the socket.
7. Reconnect the wiring harness that was previously removed from
the stock bumper assembly, and connect the licence plate lights.
If installing the stock blind-spot or parking sensors, proceed to Step 8.
If the truck is not equipped with blind-spot sensors and/or sonar
parking sensors, or you do not wish to reuse them, installation of the
LHS and RHS Sensor Brackets is not required; proceed to Step 4.
8. Place the LHS Sensor Bracket on top of the lower flange on the
hitch structure, and install two (2) M10 Hex Bolts with 10mm
Washers (4) and M10 Hex Nuts (2) through the holes of the
LHS Bumper Assembly bracket. Tighten the fasteners.
Refer to Figure 9.
9. Run the blind-spot sensor wire lead through the hole located on
the bend of the LHS Sensor Bracket, and connect it to the blind-
spot sensor. Refer to Figure 10.
10. Attach the blind spot sensor to the LHS Sensor Bracket using
the M6 Hex Bolts (3), ¼” Washers (3), 6mm Washers (3),
6mm Lock Washers (3), and M6 Nuts (3). Refer to Figure 11.
11. Install one of the sonar parking sensors into the hole on the LHS
Sensor Bracket, and connect the appropriate wire lead from the
wiring harness. Refer to Figure 12. Install the other sensor into
the hole at the bottom of the corner plate and connect the wire
lead to it. If the parking sensors are not being used, install the
provided Hole Plugs in each hole. Refer to Figure 13.
12. Repeat Steps 8-11 for the RHS Sensor Bracket and sensors.
Note: The sensors have different horizontal and vertical sensing
fields. If a sensor is falsely triggering on the bumper, try rotating
it to a different position.

183100 © 06/18 PAGE 4 OF 4
Figure 11
Figure 12
Figure 13
13. Finally, use the M6 Screws to mount your license plate.
Note: The sensors have changed from their original location and they
may not be triggered in exactly the same circumstances as before. Take
time to learn and adjust to the ne operating ranges.
14. Install two (2) M10 Hex Bolts with 10mm Washers (4) and M10
Hex Nuts (2) through the holes of the lower flange on the hitch
structure and the LHS Bumper Assembly bracket. Repeat this
step for the RHS Bumper Assembly, and tighten the fasteners.
Refer to Figure 9.
15. Insert the supplied Hole Plugs into the unused holes at the bottom
of each end plate. Refer to Figure 13.
16. Finally, use the M6 Screws to mount your license plate.
Congratulations! You’re finished! We are sure that you will enjoy this
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