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INSTALLATION INSTRUCTIONS
1999-11 1500-2500-3500 SILVERADO/SIERRA EXT CAB (Standard Box)
PART NUMBER 364009/364009-2
PARTS LIST:
1 Passenger Side Bar 2 Front Support Bracket 2011
1 Driver Side Bar 2 Center Support Brackets 2011
1 Passenger Side Front Mounting Bracket 2 Rear Support Brackets 2011
1 Driver Side Front Mounting Bracket 2 10-1.5mm x 47mm bolt tab (14mm W x 30mm L)
1 Passenger Side Center Mounting Bracket 21 10-1.50mm x 30mm Hex Head Bolts
1 Driver Side Center Mounting Bracket 10 10mm Hex Nuts
1 Passenger Side Rear Mounting Bracket 24 10mm Lock Washers
1 Driver Side Rear Mounting Bracket 32 10mm ID x 22mm OD x 1.5mm Flat Washers
2 Front Support Bracket 99-10 2 10mm Nut Plates
2 Center Support Brackets 99-10 2 12-1.75mm x 30mm Hex Head Bolts
1 Passenger Side Rear Support Bracket 99-10 2 12mm Hex Nuts
1 Driver Side Rear Support Bracket 99-10 4 12mm ID x 29mm x 3mm Flat Washers
1 1/4" x 1 3/4” x 1 3/4" square flat washer 99-10 2 12mm Lock Washers
2 M38 x 38 Square Plastic Retainers 2 10mm x 35mm Bolt Tabs
99-10Ce
nter Support Brackets 10mm Nut Plates
2011 Passenger Side
Front Support Bracket
2500/3500 Models
Passenger Side
Center Bracket
Passenger Side
Front Bracket
1999-10 models
Driver Rear
Brace Bracket
Passenger Side
Rear Bracket
99-10 Pass
Front Support Bracket
2011 Passenger Side
Middle Support Bracket
2500/3500 Models
2011 models
Passenger Rear
Brace Bracket
enger Side
10mm x 47mm Bolt tabs
Dri
ver Side
Rear Bracket
99-10 Driver Side
Front Support Bracket
99/10 2500
Passenger Rear
1/4" x 1 3/4” x 1 3/4"
2011 Driver Side
Middle Support Bracket
2500/3500 Models
10mm x 35mm Bolt
Plate (with Plastic
retainer installed)
Dri
ver Side
Center Bracket
Driver Side
Front Bracket
99/10 Passenger
Rear Brace Bracket
2011 Driver Side
Front Support Bracket
2500/3500 Models
2011 models
Driver Rear
Brace Bracket
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PROCEDURE:
1. REMOVE CONTENTS FROM BOX. VERIFY ALL PARTS ARE PRESENT. READ INSTRUCTIONS
CAREFULLY BEFORE STARTING INSTALLATION.
2. From underside of vehicle remove front, center, and rear body mount bolts. Do not remove bushings.
3. Hang driver side front, center and rear Mounting Brackets into position by partially threading factory
body mounting bolts back into body mounts (Fig 1).
4. Locate the two factory holes in the bottom of the frame towards the front of the vehicle. Insert (1) Nut
Plate trough oval hole and orient Nut Plate towards the front round hole, (Fig 2).
5. Attach driver side front Support Bracket to already inserted Nut Plate by partially threading (1) 10mm x
30mm Hex Head Bolt, (1) 10mm Lock washer, and (1) 10mm Flat Washer (Fig 3 & 4).
(1999-11) Front brace brackets 1500 Models:
Attach opposite side of driver side front Support Bracket to outside hole in the Mounting Bracket using
the included (1) 10mm x 30mm Hex Head Bolt, (1) 10mm Hex Nut, (1) 10mm Lock Washer, and (2)
10mm Flat Washers (Fig 3). Do not tighten at this time.
(1999-10) Front brace brackets 2500 Models:
Note that the Support Bracket will not reach the Mounting Bracket (Fig 4). Tighten the Support Bracket
to Nut Plate in the frame. Carefully push up on the Support Bracket until it reaches the inside hole in the
Mounting Bracket (Fig 5). Attach opposite side of driver side front Support Bracket to inside hole in the
Mounting Bracket using the included (1) 10mm x 30mm Hex Head Bolt, (1) 10mm Hex Nut, (1) 10mm
Lock Washer, and (2) 10mm Flat Washers (Fig 6). Do not tighten at this time.
(2011) Front brace brackets 2500 Models:
Attach driver side front Support Bracket to the already inserted Nut Plate by partially threading (1)
10mm x 30mm Hex Bolt, (1) 10mm Lock washer, and (1) 10mm Flat Washer as seen in (Fig 7)
Attach opposite side of driver side front Support Bracket to outside hole in the Mounting Bracket using
the included (1) 10mm x 30mm Hex Head Bolt, (1) 10mm Hex Nut, (1) 10mm Lock Washer, and (2)
10mm Flat Washers (Fig 7A). Do not tighten at this time.
(1999-11) 1500 and (1999-10) 2500 Models Middle brace brackets
6. From the inner side of the center body mount, place (1) Center Support Bracket onto front side of the
body mount. Attach Center Support Bracket to body mount using the included (1) 12-1.75mm x 30mm
Hex Head Bolt, (1) 12mm Hex Nut, (1) 12mm Lock Washer, and (2) 12mm Flat Washers (Fig 8 & 9).
Do not tighten at this time. NOTE: Larger hole on the Center Support Bracket mounts to body mount.
7. Attach opposite side of Center Support Bracket to center Mounting Bracket using the included (1) 10-
1.50mm x 30mm Hex Head Bolts, (1) 10mm Hex Nuts, (1) 10mm Lock Washers, and (2) 10mm Flat
Washers (Fig 8 & 9). Do not tighten at this time.
8. (2011) 2500 Models: Middle brace brackets
Located just above the mount bracket there is a oblong hole as seen in (Fig 10) place the bolt tab in the
hole, select the driver side brace bracket and secure it to the bolt tab with (1) 10mm Hex Nut, (1) 10mm
Lock Washer, and (1) 10mm Flat Washers attach opposite side of driver side middle Support Bracket to
inside hole in the Mounting Bracket using the included (1) 10mm x 30mm Hex Head Bolt, (1) 10mm
Hex Nut, (1) 10mm Lock Washer, and (2) 10mm Flat Washers (Fig 10A). Do not tighten at this time.
9. (99-10) 2500 models rear brace Passenger Side
With the Rear mount brackets installed select the
brace bracket and place it up to the factory support, secure it by placing (1) 10mm x 30mm Hex bolt (1)
10mm flat washer, threw from the back followed by the 1/4" x 1 3/4” x 1 3/4" flat square washer,(1)
10mm lock washer and (1) 10mm nut, secure the other end of the brace bracket to the mounting
bracket with the (1) 10mm x 30mm hex bolt (2) 10mm flat washer and (1) 10mm lock washer and (1)
10mm nut. (Fig 11) shows bracket attached, Snug but do not tighten hardware at this time.
10. (99-10) 2500 models rear brace Driver Side
With the Rear mount brackets installed remove the
factory plastic skid shield bolt select the brace bracket and place it up to the factory support, secure it
with the factory Hex bolt, and secure the other end of the brace bracket to the mounting bracket with
the (1) 10mm x 30mm hex bolt (2) 10mm flat washer and (1) 10mm lock washer and (1) 10mm nut.
(Fig 12) shows bracket attached, Snug but do not tighten hardware at this time.
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11. (2011) 2500 models rear brace bracket Driver & passenger side
With the Rear mount brackets
installed remove the factory plastic plug on inner rocker panel as seen in (Fig 13) select the bolt tab
and thread the plastic retainer partial on place the bolt tab into the hole and tread the plastic retainer
onto the bolt so the bolt does not fall into the hole (Fig 13A) select the brace bracket and place it up to
the bolt tab and secure it with the (1)10mm washer, (1) 10mm lock washer and (1) 10mm nut secure
the other end of the brace bracket to the mounting bracket with the (1) 10mm x 30mm hex bolt (2)
10mm flat washer and (1) 10mm lock washer and (1) 10mm nut. (Fig 13B) shows bracket attached,
Snug but do not tighten hardware at this time.
12. Carefully position Driver Side Bar onto Mounting Brackets. Attach Side Bar to Mounting Brackets using
the included (6) 10-1.50mm x 30mm Hex Head Bolts, (6) 10mm Lock Washers, and (6) 10mm Flat
Washers (Fig 14). Do not tighten at this time.
13. Level and adjust Side Bar, then tighten all hardware at this time.
14. Repeat steps 2-12 for passenger (99-10) models & 2011 2500 models steps 2-12 with the addition of
Fig 13 to 13B model Side Bar.
15. Do periodic inspections to the installation to make sure that all hardware is secure and tight.
To protect your investment, wax this product after installing. Regular waxing is recommended to add a
protective layer over the finish. Do not use any type of polish or wax that may contain abrasives that could
damage the finish.
For stainless steel: Aluminum polish may be used to polish small scratches and scuffs on the finish. Mild
soap may be used also to clean the Products.
For gloss black finishes: Mild soap may be used to clean the Products.
Driver Side Installation Pictured
Fig 1 Fig 2
Front of Vehicle
Bolt Plate
Factory Bolt
Driver Side Front
Bracket Pictured
Front of Vehicle
1999-11 1500 Model Front Installation Pictured
Fig 3
10mm Nut Plate
10mm x 30mm Hex bolt
10mm Lock Washer
10mm Flat Washer
1999-10 2500 Model Front Installation Pictured
Fig 4
10mm x 30mm Hex bolt,
10mm Hex nut
10mm Flat Washers
10mm Lock Washer
10mm Nut Plate
10mm x 30mm Hex bolt
10mm Lock Washer
10mm Flat Washer
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