SHERPA BIG BEAR Roof Rack Instruction Manual
- June 10, 2024
- SHERPA
Table of Contents
THE BIG BEAR
INSTALL INSTRUCTIONS
HARDWARE CHECKLIST
Exact hardware color counts may vary based on the options selected at
checkout. BEFORE YOU BEGIN
This considered an expert level install. IF you are not confident about the
drilling process we recommend seeking the help of a local install shop.
TOOLS REQUIRED: Drill, 3/16” Drill Bit, 3/16” Rivet Tool, 7/16” Wrench, 7/16”
Socket, 5/32” Allen Key,
RECOMMENDED: Drill Bit Stopcollar (set at 1”)
USING TNUTS
FLAT | CONTOURED |
---|---|
REAR | FRONT |
IMPORTANT NOTES
RIVET ATTACHMENTS
There are two different types of rivet attachments in your hardware package.
It is important that the contoured attachments go on the front of the vehicle
and not the rear.
Double check that you have the right attachments before starting the rivet
process.
OEM EDGE TRIM
During the install you will need to remove the black factory edge trim from
the roof gutter. We recommend reinstalling this after you rack is on.
PRE-ASSEMBLY
Required Components:
6x 1/4”-20 x 1/2”
6x 1/4” Flat Washers
6x Tnuts
Drop 6 tnuts into the slots on the cross member and line them up with the
holes in the fairing. Secure with 6 bolts and washers. PRE-ASSEMBLY
Required Components:
8x 1/4”-20 x 9/16”
8x 1/4” Flat Washers
8x 1/4” Tnuts
Secure top of the mounting brackets to the two main cross members.
Leave the hardware that attaches the mount to the crossbar loose. This will
make it easier when centering the bars later. 01
Required Components:
8x 1/4”-20 x 1”
8x 1/4” Flat Washers
Secure the two main crossmembers with mounts to the sideplates of the rack.
Position the crossbars in the center of the slots designated by the diagram
below.
Align the small slots in the rack side with the ends of the main support
crossmembers. Secure it using 8 bolts and washers. Leave the bolts loose
enough to move the sideplate to the position that matches the curve of the
vehicle.
Once the rack is positioned correctly, tighten down all of the hardware for
the rack sides, mounting hardware and roof track bolts. 02
Required Components:
4x 1/4”-20 x 1”
4x 1/4” Flat Washers
Position the wind fairing in line with the diagonal slot at the front of the
rack. Align the bottom of the fairing with the tip of the roof rack and secure
it using 4 bolts and washers. 03
Required Components:
12x 1/4”-20 x 1”
12x 1/4” Flat Washers
Secure all of the remaining cross members to the rack system. Position
according to your load requirements.
Position the assembled rack on the roof of your vehicle. Place the rivet
attachments under the mounting brackets. You will mark your positions in the
next steps. This assembled rack will serve as your drilling template.
We recommend loosening the bolts and adjusting the rack to best match the
curve of the vehicle in this stage. Use a tape measure and center all of the
bars on the vehicle. We recommend measuring from the inside edge of the mount
to the outside face of the crossbar.
THE NEXT STEPS ARE CRITICAL AND ARE CONSIDERED AN EXPERT LEVEL INSTALL. IF YOU
ARE NOT COMFORTABLE DRILLING PLEASE FIND A LOCAL SHOP TO INSTALL YOUR
RACK.
DRILLING
Required Tools:
1x Center Punch
1x 13/64” or #8 Drill Bit
With the rack on the truck, mark the position for each rivet spacer USING A
PUNCH to create your starting points for drilling. This is important as the
drill bit will want to walk away while drilling your pilot holes. The position
of these holes are important in making sure that the rack fits your vehicle
correctly. Measure 3 times, check 4 times. Be extremely careful not to drill
through your airbags – using a drillstop on your drill bit can help prevent
this by limiting the travel of the drill bit.
With the holes marked, the rack can be removed from the roof. It is worth
double checking that the rack sits in its final configuration before marking,
removing, and drilling. The rivet spacers can also be removed from the
mounting brackets on the rack to assist the following steps.
Once you have your drilling points marked with the punch, drill the hole using
a 13/64” or #8 sized drill bit. A pilot hole using a smaller drill bit – such
as a 1/8” or 5/32” bit – can be drilled first. DO NOT allow the drill bit to
plunge after the hole is drilled. The headliner is only a small distance below
the surface of the roof. Be sure to keep the drill bit as straight as possible
while drilling. AGAIN, DO NOT allow the drill bit to plunge after the hole is
drilled.
Check that the rivets will pass through the rivet spacer and the drilled hole.
A tight fit is preferred in order to solidify the connection between the
vehicle and the rack.
RIVETS
Required Components:
8x 3/16” Rivets
1x Rivet Tool
Next, secure the rivet spacers using the holes you have drilled. It is
important that the spacer is tight against the roof and free of debris before
riveting it down. Apply a small amount of silicone in and around the rivet
spacer and rivet to seal up the hole in the roof. Using your rivet tool, clamp
down on the rivet as close to the head as possible. The mandrel of the rivet
will shear off once it is installed and should be flush with the head.
WE RECOMMEND PLACING THE FULL RACK BACK ON THE ROOF FOR THE REMAINING STEPS.
IMAGES ARE SHOWN WITHOUT SIDES FOR ILLUSTRATIVE PURPOSES.
MOUNTS
Required Components:
12x M8 Bolts
12x M8 Flat Washers
Next, re-install the assembled rack on the roof, allowing the mounting
brackets to rest on the rivet feet. If these do not line up, loosen the
hardware that secures the mounting bracket to the cross member and adjust as
needed. Fasten the mounting bracket to the rivet spacer using the M8 x 16 hex
bolt and washers with the addition of a drop of blue threadlocker on the bolt
threads supplied with the
rack.
FINAL ADJUSTMENTS
All fasteners should be tight at this point. If the rack needs to be adjusted
forward or back visually, loosen the socket buttons securing the sideplates to
the mount-crossmembers and slide as desired. Side-to-side adjustment can be
achieved by loosening the 7/16” hex bolts that secure the mounting brackets to
the crossmembers.
If no further adjustment is required, the installation is complete.
EXPLORE.
All products built and designed by Sherpa Equipment Company are intended
for off-road use and should be assembled, installed, and used according to
Sherpa Equipment Company’s recommendations. Sherpa Equipment Companies
products should be used safely with good judgment towards others and
surroundings.
By installing Sherpa Equipment Companies products on your vehicle you assume
all liability. Sherpa Equipment Company will not be held liable for damages or
loss associated with the installation or use of its products. It is
recommended that you inspect your roof rack within the first 100 miles of
installation and every 500 miles after.
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