Extang CLASSIC PLATINUM & BLACKMAX 7920 Assembly instructions

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)
Extang Corporation
1901 E. Ellsworth Rd.
Ann Arbor, MI 48108
734 677-0444, Fax: [phone]
Visit us at:
www.extang.com
Item No. 0020-1202RH Printed in U.S.A.
INSTALLATION SHEET GMC/Chevy Stepside ‘99–
3
Remove paper tape from all rails. Discard properly.
Foam has NO adhesive to
touch truck finish.
Wash truck bed.
PLEASE
DO NOT
LITTER
Pull back on the ClickLockTM
release and remove one corner
from cab rail.
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.)
Reinsert corner piece into cab
rail until it “clicks” and locks
into place.
ClickLockTM
12
NOTE:
B
LACK M AX has snaps on all rails.
4
IMPORTANT: Clean here with alcohol pad.
(Both Sides)
Off the truck bed, connect the
end rails to the two side rails.
NEW Improved
“DOUBLE HOOK”
Side Rail Clamps
Tarp
Bows
Side Rails
Allen Wrench
Clamp Bolts
TuffKlamps™
Tailgate Rail
For Classic Platinum Only (This step does not apply to BlackMax)
Wall Plates
Alcohol
Pad
Part # 7920, 2920
Cab Rail
(BlackMax includes snaps on this rail)
Corner Pieces

Extang Corporation, 1901 E. Ellsworth Rd., Ann Arbor, MI 48108, 734 677-0444, Fax: [phone], Visit us at: www.extang.com
8
6
Place the rail assembly over the side of the truck box. Center
rails evenly between cab and tailgate. (NOTE: Some applications
have hard rubber risers (square rubber pad.) A riser must go toward tailgate.
Some applications will have a riser at both ends, (most have no riser).
5
Clamp Spacing (Same for each side)
See the stickers located on each side rail for clamp
position, or refer to the dimensions given below.
Note: Remove stickers after installation.
Insert clamp bolt in place.
Do Not Overtighten
Insert bow onto top or bottom peg.
(Top peg for performance, Bottom for good looks.)
Ends are spring loaded
for easy installation.
Push and hold on
spring end and let the
other end slide on with
the spring action.
SPECIAL
FEATURE:
Two pegs
offer two
height
adjustments.
Note:
Bow End does not
fit between pegs.
8Attach tarp by starting
at the corners, and
snap in place.
EASY USE OF TRUCK BED
Tarp may be rolled up and secured with
Velcro® for bulk hauling
Studs Down Slides Off Rotate 180°Studs Up
SUMMER SETTING
Takes up slack in tarp
caused by warm weather.
WINTER SETTING
Allows more slack in tarp
for cold temperatures.
7
When positioning wall plates be sure that they fit correctly against the truck bed wall.
The plates must seat against the bottom of, and parallel to, the wall indentation.
12
inches
12
inches Center middle clamp
Note: Measure all distances from screw hole centers.
9
Press wall plate
firmly in place.
Allow wall
plates to set
over night.
For an OVER-THE-RAIL Bedliner
A
DIAGRAM B
DIAGRAM
Note: For over-the-rail bed liners first refer to Diagrams A and B below.
Upper
Peg
Lower
Peg
Do Not
Place
Between
the Pegs
Start at
Corners
TIGHTER
LOOSER
TIGHTER
LOOSER
TIGHTER
LOOSER
TIGHTER
LOOSER
After wall plates
have set, insert side
rail clamp all the
way into rail.
SPECIAL FEATURE
Weather-adjustable Snaps
Place Clamp
Here
STICKER
For each clamp mark on your bedliner a 1-1/2” x 3” hole
as shown above. Remove clamp. Cut holes in bedliner.
Reinsert side rail clamp. Return to step 6.
Side rail clamped to bed with
bow attached.