AMP Research BEDXTENDER HD 74805-00A User manual

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ASSEMBLY & INSTALLATION GUIDE
1
APPLICATION
GM Truck (Full-size Trucks)
Remove contents from box and check for damage.
Verify all parts against parts list.
Read and understand instructions completely before attempting assembly
and installation.
SKILL LEVEL
1= Easy
2 3 4
PART #
74805-00A (Silver) 74805-01A(Black)
TOOLS REQUIRED
Phillips screw driver
Torx T-25 driver
Power drill
1/8” drill bit
21/64” drill bit
Center punch
Supplied templates
Soapy Water
BEDXTENDER HD™ shown assembled and installed on truck.
INSTALLATION TIME
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 BED X-TENDER HD™
15 x2
Strap latch insert
16 x2
Socket cap screw
(Only provided on
Deep Bed/Small kits)
(Only provided on
Deep Bed/Small kits)
12 x4
19-03355-90
M8 Bolt
13 x4
19-03356-90
M8 Nut
Kit Number 74603-01A
PARTS LIST AND HARDWARE IDENTIFICATION
74608-01A
Quick Mount
Bracket Set
1x2
74606-01A
Mounting Bracket
2x2 x4
4
20-3654-90
Bumper
11
Silver:12-03791-53SP
Black:12-03791-53BP
Double Bend Center Tube (With AMP Logo)
3
11-03639-90
PT-Screw
x12
x2
x2
5
20-0xxxx-13
Strap Buckle Assembly
Silver:12-03791-53S
Black:12-03791-53B
Double Bend Center Tube (Without AMP Logo)
14
6x2
Silver: 20-0xxxx-xx
Black: 20-0xxxx-xx
Pivot Upright Assembly 7x2
20-3640B-90
Bumper Upright Outer
8x2
20-3640A-90
Bumper Upright Inner
10 x6
10-02387-90
M5 Nut
9x6
19-03131-90
M5 Bolt

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AMP RESEARCH BEDXTENDER HD™
AMPRESEARCH BEDXTENDER HD™
1
2
Remove the 2 Phillips screws that are holding
the tail lights in place. Carefully pull back to
remove tail lights.
Tape template to vehicle to locate upper hole
of Mounting Bracket. Mark (Center Punch) &
drill hole with 1/8” drill bit. Remove template
and drill out hole with 21/64” drill bit. Use file
to remove burrs. Apply primer to edge of hole.
Repeat for other side.
Place Mounting Bracket aligned with top hole. Allow
bracket to hang vertically. Mark (Center Punch) loca-
tion of lower hole using the bracket slot as a template.
Remove bracket. Drill hole with 1/8” drill bit then drill
out hole with 21/64” drill bit. Use file to remove burrs.
Apply primer to edge of hole. Allow primer to dry.
Assemble Mounting Bracket using the M8 bolts & nuts
as shown. Tighten & torque to 22ft. lbs. Replace the
tail light assembly. Repeat for other side.
MOUNTING BRACKET INSTALLATION - CHEVROLETSILVERADO / GMC SIERRA2007+
PLEASE READ ENTIRE INSTRUCTIONS BEFORE PROCEEDING WITH INSTALLATION
1
2X
Quick Mount Bracket
Use the M5 bolts and nuts to
fasten the Quick Mount Bracket to
the mounting bracket. Apply
thread locker to the tip of the M5
bolt. Torque to 8 ft. lbs. Allow 10
minutes to dry before handling.
(Passenger side shown)
NOTE: Angle brackets may
alread be installed onto brackets.
2
10
9
13
12

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AMP RESEARCH BEDXTENDER HD™
BED X-TENDER ASSEMBLY
Using template measure 7” from each end of the
three long tubes and mark with tape. Tape is to be
used as a reference point. (See step 6)
Repeat for the other side. Adjust the width of the BEDXTENDER to fit the pre-
installed mounting brackets. To keep tube overlap
constant, adjust each tube so that the gap between
the edge and the tape is the same.
12
34
5 6
Slide the center tube (With Amp logo) into the center
tube of the 3-tube assembly. Be sure to slide on
Strap Buckle Assembly to center tube of Pivot
Upright Assembly
Insert the top long tube into the top tube of the 3-tube
assembly.
Insert the bottom long tube into the bottom tube of
the 3-tube assembly.
11
11
6
14
14
14
5
Note: Install Strap Buckle Assembly to cen-
ter tube of Pivot Upright Assembly.
Note: Tubes do not need to
be pushed in to taped edge.
Note: If tube joints are tight Soapy
Water can be used.

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AMP RESEARCH BED X-TENDER™
BED X-TENDER ASSEMBLY – CONTINUED
Attach plastic upright around the tube juncture, plac-
ing rubber bumpers into the two ends of the upright.
NOTE: The inside of the upright is stepped
to fit correctly around the small and large
diameter tubes.
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.
Adjust Strap Buckles to lock into the tailgate when BEDXTENDER is deployed.
Your assembly is now complete.
78
9
3
4
8
8
7
7
NOTE: Do not over tighten as this may strip
out. Fastener will reach a noticable stopping
point.
Upright is not positioned
in center of tube joint.

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AMP RESEARCH BED X-TENDER™
Remove the PT-Screw with a T20 Torx driver.
1
AMP RESEARCH BED X-TENDER™
Install Strap Buckle Insert with the
provided 10/32 x 7mm socket head cap
screw with a 4mm hex key. Repeat for
other strap.
11
10
For Toyota applications the supplied Strap Buckle Insert must be used.
15
16
12
When the BEDXTENDER is at the furthest rear position,
push down on the buckle to insert into tailgate latch. Tighten
straps. To release, pull tailgate handle.
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
AMPResearch 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 buck-
les 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