A8 7, For an over-the-rail bedliner – Extang Tuff Tonno General Installation User Manual

Page 2

Extang Corporation, 5400 S. State Rd., Ann Arbor MI 48108, 734-677-0444, Fax: 734-677-8409

Visit us at:

extang.com

Insert side

rail clamp

all the way

into rail.

Insert side rail clamp all the way into rail.

Note: For over-the-rail bed liners refer to

Diagrams A and B below.

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.

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 5.

Side rail clamped to bed

with bow attached.

STANDARD CLAMP

IMPORT CLAMP

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.

Longer Clamps

Some trucks use two lengths of

bracket to fit sculpted sidewalls.

Longer clamps go in the

forwardmost (Cab) positions

while the shorter pair hold the

rails at the rear (tailgate) end.

EASY USE OF TRUCK BED

Tarp may be rolled up and secured

with Velcro® for bulk hauling

A. Release lever on both corners

of tailgate rail and tilt rail up.

D. Finish attaching tarp along each side by

pushing down and sliding you hand towards

each corner. You can feel the “grip” action.

C. Close-up of downward rotation of

rear rail. You will feel the “snap” effect

and see it tighten snugly.

PUSH

DOWN

PRESS & SLIDE

YOUR HAND

B. Attach tarp at front by

pressing down on edge of tarp

with the palms of your hands

(about only 12 inches on each

side). Then hook tarp to the tails

railʼs groove and click down to

tighten tarp. See close-up.

DIAGRAM

Upper

Peg

Lower

Peg

Do Not

Place

Between

the Pegs

For an OVER-THE-RAIL Bedliner

DIAGRAM

LONGBED

(4 clamps)

SHORTBED

(3 clamps)

Short Clamps

Long Clamps

Short Clamp

Long

Clamps

FOR INSTALLATION

IN THE FOLLOWING

TRUCK MODELS:

Ford HD Long-Bed

Ford HD Short-Bed

Place Clamp

Here

STICKER

Place assembly

over truck box. Center

between cab and tailgate.

Off the truck bed,

connect the end rails

to the two side rails.