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02/28/03
47050 H2 Roof Rack Mo#116F8.doc
H2 Hummer Roof Rack Assembly/Mounting Instructions (7_ Foot)
Tools Required for Installation: Package Contents:
5/32” Allen Wrench Roof Rack Halves (2)
1/2” End Wrench or Socket X 2 Rack Bracket T-Nuts (16)
9/16” End Wrench or Socket Oval Bar--66 _” long (4) w/attached Roof Bracket (8)
Oval Bar End Caps (8)
Oval Bar T-Nuts (24)
Safety Clips (8)
_” X 20 X _” Flat Socket Screw (8)
5/16” X 18 X 1_ ” Stainless Hex Bolt (8)
3/8” X 16 X _” Stainless Hex Bolt (24)
3/8” X 16 X 1” Stainless Hex Bolt (16)
5/16” X 18 Stainless Nylock Nut (8)
3/8” Stainless Flat Washers (40)
1) Before beginning assembly/installation, please check to make sure you have received all of the contents as listed
above.
2) Lay the roof rack halves upside down on a level, non-marking/non-scratching surface and align. Join the two halves
together using the provided 5/16” X 18 X 1_ ” stainless hex bolts and Nylock nuts (8 each). Tighten securely. Before
installing the Nylock nuts, lubricate the bolt threads with grease or a similar anti-seize lubricant.
3) With the rack still upside down, install the 3/8” X 16 X _” stainless hex bolt /stainless washers (24 each) up through
the rack and into Oval Bar T-Nuts (24). Tighten bolt one turn only. Slide the Oval Bars onto the T-Nuts, centering
Oval Bars under rack. Snug all bolts.
4) Adjust the position of the eight (8) factory attached Rack Brackets so that they are positioned approximately 5/8”
from each end of the Oval Bars. Remove existing Hummer H2 top bars (refer to Hummer H2 Owners Manual for
removal instructions).
5) Remove existing Hummer H2 top bars (refer to Hummer Owners Manual for removal instructions).
6) Place the assembled roof rack on vehicle located on the existing roof channels.
7) Place a Rack Bracket T-Nut (16) into the slot of the existing roof channel adjacent to each end of the Rack Brackets.
The chamfered side of the T-Nut must be facing down (see photo below). Slide these T-Nuts under the Rack
Brackets until they are aligned with the Rack Bracket holes.
8) Install one Safety Clip per Bracket (eight total) by hooking the clip under the inboard edge of the existing roof
channels and pivoting it over the Rack Bracket foot to align with the bolt hole (see photo below). Attach using 3/8”
X 16 X 1” stainless hex bolts (16) and 3/8” stainless washers (12). Finger tighten bolts.
9) Adjust the roof rack forward/backward to the desired location, allowing clearance for the rear hatch door opening,
moon roof, On-Star® antennae etc. Center the Oval Bars and the roof rack and tighten all bolts (existing Hummer
roof channel to Rack Brackets bolts; Rack Bracket to Oval Bar bolts; Oval Bar to Roof Rack bolts). Install Oval Bar
End Caps using provided _” X 20 X _” Flat Socket Screw (8).
END OF OVAL BAR SHOWING
T-NUTS AND ROOF BRACKET
SAFETY CLIP SHOWN INSTALLED.
NOTE POSITIONING UNDER
EXISTING ROOF CHANNEL
INSTALL T-NUTS IN ROOF
CHANNEL WITH CHAMFER
SIDE DOWN
HOLE POSITIONED
CLOSEST TO OUTER
EDGE
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