Extang Platinum BlackMax: GMC/Chevy Stepside 99+ - Manual (Page 2)

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.
Attach 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.
Extang Corporation, 5400 S. State Road, Ann Arbor, MI 48108, 734 677-0444, Fax: 734 677-8409 Visit us at: extang.com
Start at
Corners
SPECIAL
FEATURE:
Two pegs
offer two
height
adjustments.
Note:
Bow End does not
fit between pegs.
Upper
Peg
Lower
Peg
Do Not
Place
Between
the Pegs
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
Side rail clamped to bed
with bow attached.