AMP Research BEDXTENDER HD MAX 74841-00A User manual

rev 05.02.19
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ASSEMBLY & INSTALLATION GUIDE
1
APPLICATION YEAR
GM Silverado/Sierra 2019
Remove contents from box and check for damage.
Verify all parts against parts list.
Read and understand instructions completely before attempting assembly
and installation.
INSTALLATION TIME
SKILL LEVEL
1= Easy
2 3 4
PART #
74841-00A (Silver) 74841-01A (Black)
TOOLS REQUIRED
Phillips screw driver
Torx T-20 driver
Torx T-25 driver
Power drill
1/8” drill bit
21/64” drill bit
Center punch
Supplied templates
Soapy Water
Masking Tape
BEDXTENDER HD™ shown assembled and installed on truck.
1 Hour
Invented, engineered and manufactured exclusively by AMP Research in the USA. May be covered by one of the
following patents:
5,700,047; 6,113,173; 6,402,215; 6,805,392; 7,063,366; 7,393,035; 7,654,598; 7,681,935; 7,841,638
3-Year Limited Warranty
WARRANTY

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AMP RESEARCH BEDXTENDER HD™
PARTS LIST AND HARDWARE IDENTIFICATION
Quick Mount
Bracket Set
1x2 x4
3
Bumper
(Small Silver)
(Small Silver with LOGO)
(Small Black)
(Small Black with LOGO)
(Large/Deep Black)
(Large/Deep Black with LOGO)
(Large/Deep Silver)
(Large/Deep Silver with LOGO)
Center Tube
2
PT-Screw
x12 x2
4
Strap Buckle
Assembly
10 x2
Silver: (Small)
Black: (Small)
Silver: (Deep)
Black: (Deep)
Silver: (Large)
Black: (Large)
Pivot Upright Assembly
5x2
(Small/Narrow)
(Large/Deep)
Bumper Upright Outer
6x2
(Small/Narrow)
(Large/Deep)
Bumper Upright Inner
11 x3
7x4
M8 Bolt
8x4
M8 U-Nut
9x4
Bracket Nut
Plate

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AMP RESEARCH BEDXTENDER HD™
MOUNTING BRACKET INSTALLATION - CHEVROLET SILVERADO / GMC SIERRA 2019
PLEASE READ ENTIRE INSTRUCTIONS BEFORE PROCEEDING WITH INSTALLATION
Remove the tail lights using T20 torx driver. Carefully pull back to remove tail lights.
Assemble U-Nuts on to bracket plates in the
orientation shown.
1
4x
M8 Bolt
Driver Passenger
4x
M8 U-Nut
4x
Bracket Nut Plate

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AMP RESEARCH BEDXTENDER HD™
2
3
Enlarge hole in D-Pillar with 21/64” drill bit. Fasten the Quick Mount Bracket to the D-Pillar with one M8 Hex
Bolt and Bracket Nut Plate Assembly.
Allow the bracket to hang vertically. Using bracket as a template, mark (Center Punch) the upper hole of
the lower slot (indicated). Pre drill hole with 1/8” drill bit, losen upper mounting hole and rotate bracket away
from hole and open hole using a 21/64” drill bit. Remove burs, apply primer to edge of holes, and allow
primer to dry. Install brackets.

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AMP RESEARCH BEDXTENDER HD™
BED X-TENDER ASSEMBLY
Adjust the width of the BEDXTENDER by placing
the pivots into the mounting brackets. To keep
overlap consant, adjust each tube so that the gap
between the edge and the tape is the same.
34
5 6
Slide 3 center tubes into the open ends of the bent
tubes as shown. Insert center tube with logo into the
center tube.
Connect the two halves. Make sure there is at least
3” overlap with the bent tubes on each side.
Measure 7” from each end of the three center
tubes and mark with tape. Tape is to be used as a
reference point
11
10
11
11
Note: Template
located on inside
of box.
11
10

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AMP RESEARCH BEDXTENDER HD™
BED X-TENDER ASSEMBLY – CONTINUED
Adjust Strap Buckles to lock into the tailgate when BEDXTENDER is deployed.
Your assembly is now complete.
7
9
8
Tighten PT-Screws using a T-25 torx driver, starting
in the middle of each upright, then the outer screws
and lastly the remaining two to evenly tighten.
2
6
5
NOTE: Do not over tighten as this may strip out.
Fastener will reach a noticable stopping point.
8
Attach plastic upright around the tube juncture,
placing rubber bumpers into the two ends of the
upright.
NOTE: The inside of the upright is stepped
to t correctly around the small and large
diameter tubes.
3
6
5
Upright is not positioned in
center of tube joint.

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1
AMP RESEARCH BEDXTENDER HD™
10
NOTE: Ensure that buckles are properly inserted into
latches by pulling on the straps after both buckles have
been inserted.

rev 01.03.12
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Congratulations on your purchase of the
AMP Research BEDXTENDER HD.
Here’s what you need know...
BEDXTENDER HD™ OPERATION
With the tailgate open, place BEDXTENDER pivot pins into the left and right mounting
brackets. Rotate to 45 until it drops into place, then lower onto the open tailgate.
Flip BEDXTENDER out to contain cargo in the truck bed when the tailgate is open.
CAUTION! 200lb maximum load on open tailgate. Always distribute cargo evenly and
properly secure inside bed. Do not secure cargo to the BEDXTENDER or the tailgate.
Before driving, secure BEDXTENDER by locking the provided strap buckles into the
truck’s tailgate latches. To release, pull tailgate handle. NOTE: Ensure that both
buckles are properly locked into the latches by pulling up on each strap.
Flip BEDXTENDER forward and close the tailgate to keep smaller cargo safe and
organized.
LIMITED WARRANTY
The material that your product is made from can be recycled.
Please also consider recycling the packaging that your
product came in.