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Before returning this product
to the store of purchase
Contact Dee Zee if you experience the following problems:
•MissingParts
•InstallationProblems/Questions
•WarrantyQuestions
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Reviewcompletewarrantypolicyandregisteryourproductat:
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INSTALLATION INSTRUCTIONS
3” SIDE B A R
99-11 CHEVY SILVERADO 1500/2500 EXT CAB
PART # DZ 371761/DZ 371762/DZ 371763
/DZ 370752/DZ 371521/DZ 371522/DZ 371523/BKT37152
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3” SIDE BAR
99-11 CHEVY SILVERADO 1500/2500 EXT CAB
Page 1 of 4 12/17/07 (AM)
IMPORTANT ALERT: GM uses a very strong thread-locking compound on all
body bolts. Use of an air assisted impact ratchet can cause damage to the
threads on factory body mount bolts and the internal nut assembly because of
this thread locking compound.
We only recommend the use of hand tools to slowly remove and reinstall body
mount bolts on all GM vehicles.
PROCEDURE:
CRITICAL INFORMATION: If during the removal process, it becomes increasingly
difficult to unscrew the body mount bolt with hand tools, tighten the bolt several
rotations to clear the thread locking compound from the threads, then reverse
direction and continue to unscrew until the body mount bolt is out. Repeat this
process as necessary on all GM body mount bolts. Use of an appropriate antiseize compound is highly recommended for re-installation. Tighten body mount
bolt to factory torque specifications for your particular model year.
Example of GM factory body mount bolt
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3” SIDE BAR
99-11 CHEVY SILVERADO 1500/2500 EXT CAB
Page 2 of 4 12/17/07 (AM)
PARTS LIST:
1
Driver/Left Sidebar
4
½” x 2” Hex Head Bolts
1
Passenger/Right Sidebar
4
½” Lock Washers
2
Front Mounting Brackets
4
½” ID x 1 -1/2” OD x 1/8” Flat Washers
2
Center Mounting Brackets
2
10-1.50mm x 25mm Hex Head Bolts
2
Rear Mounting Brackets
2
10mm Lock Washers
2
10mm ID x 26mm OD x 3mm Flat Washers
Front Mounting
Brackets
Rear Mounting
Brackets
Center Mounting
Brackets
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3” SIDE BAR
99-11 CHEVY SILVERADO 1500/2500 EXT CAB
Page 3 of 4 12/17/07 (AM)
PROCEDURE:
1. REMOVE CONTENTS FROM BOX. VERIFY ALL PARTS ARE PRESENT. READ
INSTRUCTIONS CAREFULLY BEFORE STARTING INSTALLATION.
2. From underside of vehicle, remove the driver side body mount bolts. NOTE: Do not remove
body mount bushings.
3. Partially install front, center, and rear Mounting Brackets to vehicle using the factory body
mount bolts removed in step two. NOTE: Make sure that the support brace on the Front
Mounting Bracket is towards the front of the vehicle and the support brace on the center
Mounting Bracket is towards the body mount.
4. With help position Side Bar onto Mounting Brackets. Attach front and rear Mounting Brackets
to Sidebar using the included (2) ½” x 2” Hex Head Bolts, (2) ½” Flat Washers, and (2) ½” Lock
Washers. Do not tighten at this time.
5. Attach center Mounting Bracket to Sidebar using the included (1) 10-1.50mm x 25mm Hex
Head Bolt, (1) 10mm Flat Washer, and (1) 10mm Lock Washer. Do not tighten at this time.
6. Level and adjust Side Bar properly; and then tighten all hardware at this time.
7. Repeat steps 2-6 for passenger Sidebar.
8. 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 Taillight Guard.
For gloss black finishes: Mild soap may be used to clean the Taillight Guard.
(Driver Side Installation Shown)
½” x 2” Hex Head Bolt
½” Lock Washer
½” Flat Washer
Fig 1
Front
Mounting
Bracket
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3” SIDE BAR
99-11 CHEVY SILVERADO 1500/2500 EXT CAB
Page 4 of 4 12/17/07 (AM)
10mm x 25mm Hex Head Bolt
10mm Lock Washer
10mm Flat Washer
½” x 2” Hex Head Bolt
½” Lock Washer
½” Flat Washer
Fig 2
Fig 3
Fig 4
Center
Mounting
Bracket
Rear
Mounting
Bracket
Installation
Complete
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