Extang Platinum BlackMax: GM/Chevy Composite Box User Manual
Installation sheet, Gm/chevy composite box, Exclusively for

PARTS INCLUDED IN YOUR KIT. You may want to lay them out in this manner for accessibility.
MISSING PARTS???
call Extang at
1-800-877-2588
Any and all needed parts will be shipped to you
directly. (DO NOT return whole kit to store)
Register your warranty at:
www.extang.com
I t e m N o . 0 0 0 9 - 0 7 0 8 P r i n t e d i n U . S . A .
INSTALLATION SHEET-
GM/Chevy Composite Box
3
P L E A S E
D O N O T
L I T T E R
Reinsert corner piece into cab
rail until it “clicks” and locks
into place.
ClickLock
TM
1
2
Extang Corporation
1901 E. Ellsworth Rd.
Ann Arbor, MI 48108
734 677-0444, Fax: 734 677-8409
"L" Brackets and 2 1/4"
long Screws
(4 sets)
Wash
truck
bed.
Remove
paper tape
from all
rails.
Discard
properly.
Foam has NO adhesive to
touch truck finish.
Allen Wrench
Exclusively
for
Tarp
Corner Pieces
Tailgate Rail
Side Rails
Spring Bows
(x3-Short Bed)
(x4-Long Bed)
Feed tarp dowel into cab rail.
(NOTE: For easiest feeding action, place tarp on a flat
smooth surface, and keep dowel straight while feeding
into cab rail. Caution, pavement may scuff tarp.)
Depress the ClickLock
TM
release and remove one corner
from cab rail.