Page 1
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)
• 1/2” Socket Wrench
• 3/4” Sheetmetal Drill Bit
• #2 Phillips Screwdriver
1
If cab is higher than side rails (liner) either...
If side rails are higher than cab rail…
If your Truck has a Bed Liner or Rail Caps
Use a credit card or straight edge to see if there is more than
a 1/8” gap between your liner and the sheet metal.
... trim off bed overlap,
or...
Apply foam seal (included) to
front lip of truck bed (below
cab rear window) from driver
side bed rail cap to
passenger side rail cap.
Sheet
Metal
1/8”
Liner
Sheet
Metal
... add bed rail caps
designed for your vehicle.
If there is a gap between the cab
rail liner and the side rail caps, cut
a small piece of adhesive foam seal
and insert.
Extang Corporation
5400 S. State Road
Ann Arbor, MI 48108
734 677-0444, Fax: 734 677-8409
Do Not apply foam
seal if not required.
I t e m N o . GM0 2 3 1 - 1 4 0 3 RH P r i n t e d i n U . S . A .
GM0231
Liner
Side Rail
Cap
Register your warranty at:
extang.com
Page 2
2
3
Position EnCore side rail on truck bed and space the side rail drain edge 1” from bed
1
sheet metal. If the truck has a bedliner, the distance will be smaller.
NOTE: Make sure that both side rails are exactly the same distance.
Reference using the 1” wide clamps as a block to set the drain rail-to-cab distance.
Carefully locate clamps as decals indicate.
APPROX
CLAMP
second clamp between 2nd & 3rd pin, and rear clamp 1” from tail end of drain rail.
LOCATION
Note clamp locations: Place front clamp just behind the first pin,
1”
1”
1”
NOTE: For tonneauʼs with a 4th clamp - position the clamp 12" from the end of the rail at the tailgate.
Insert clamp into drain rail so ridge on
the clamp engages the flange as shown.
NOTE: Some force is required to insert
4
1
clamp into drain rail.
Hold rail in place and PUSH side rail DOWN as you attach the clamps.
You will need assistance with this step.
12”
8.5
lb-ft
1/2“
socket
8.5
lb-ft
Correct
Not Correct
8.5
lb-ft
Check the side rail fit.
5
1
Side rails must
be level and in
contact with
truck bed
sidewall.
Extang Corporation, 5400 S. State Road, Ann Arbor, MI 48108, 734 677-0444, Fax: 734 677-8409
Top of rail must contact truck
bed side wall to insure a seal.
NOTE:
Completel
y Level
If rail is too high,
remove leveling pad
from back of rail.
Visit us at: extang.com
Page 3
6
Drill a 3/4” hole through a truck
bed knockout plug, truck bed or
bedliner. Insert the drain hose
through that hole.
Lay EnCore cover back
8
over center of truckbed.
7
Stand the bundled panel system on
the drain rails so that the retaining
hooks line up with the two pins inside
the drain channel as shown here.
Be careful not to
scratch the truck
finish at this step!
9
Before this step,
be sure you
UNLOCK the
panel latch.
Secure EnCore tethers, located under
center panel, to each side rail. Tether
hooks must be attached to side rails
any time cover is on the vehicle.
Unfold front panel and position
cab and middle panels over truck
bed making sure retaining hooks
engage pins in drain rail. Press
down on cab panel to lock in
place
10
With tailgate open, unfold tail panel
and press down onto truck bed.
Tonneau should now be
secure.
NOTE: To insure a
better seal, always
close panel before
closing tailgate.
Extang Corporation, 5400 S. State Road, Ann Arbor, MI 48108, 734 677-0444, Fax: 734 677-8409
Visit us at: extang.com
Page 4
11
Check For Tail Panel Latch Engagement
Check to see that both tail panel latches make proper contact with the EnCore side rails.
If tail panel latch
doesnʼt contact side
rail properly…
…hand-loosen latch screws
and slide the latch toward
the side rail.
Retighten
screws by hand.
If the tail panel latch is
not tight to the EnCore
side rail, add spacer to
side rail lip.
12
degrees) clockwise two to three times to ensure
Ensure front panel latch system is functioning properly.
Rotate lock cylinder (unlocked) 1/4 turn (90
lock snaps back to original position.
Verify front panel is
securely latched on
both sides of truck.
Do Not Drive the
vehicle with the
tonneau cover on
the truck until the
lock snaps back to
original position and
the front panel is
securely latched on
both sides of truck!
SECURE THE FOLDED ENCORE COVER TO
FRONT OF CAB WITH BOTH CAB BUCKLES.
DOUBLE CHECK TO BE SURE BUCKLES ARE
SECURELY FASTENED. ALSO SECURE
TETHERS LOCATED ON THE CENTER PANEL
TO EACH SIDE RAIL. VEHICLE MAY BE
DRIVEN WITH THE COVER IN THIS SECURE,
FOLDED POSITION.
Extang Corporation, 5400 S. State Road, Ann Arbor, MI 48108, 734 677-0444, Fax: 734 677-8409
Visit us at: extang.com
Page 5
IMPORTANT!
EnCore Tonneau Cover — Safe Operation and Use
Tonneau Cover Positions While Operating Vehicle
Prior to vehicle operation, tonneau cover MUST be properly secured.
CLOSED POSITION
• Front panel must be closed and FULLY LATCHED to tonneau side rail. Center and rear
panel must be flat and rear latches engaged.
• Verify front panel is securely attached on both sides of truck before operating vehicle.
OPEN POSITION
• Tonneau must be folded to cab position and secure with BOTH buckles.
AT ALL TIMES
• Tether hooks must be attached to side rails at all times.
• Do not operate vehicle with objects on top of cover.
Cab Panel Operation
To access the storage at the front of your truck bed:
• Turn the locking knob on the driverʼs side of the truck clockwise 1/4 turn (90 degrees) with one
hand and lift using the lift assist handle with your other hand.
• Always make sure that your key is removed and the lock cylinder cover is closed when folding the
cover.
• Lay the front panel carefully back on the other panels of the tonneau cover to prevent denting the
tail panel.
• To lock/unlock the front panel lock, lift the lock cover, insert the key and rotate 1/4 turn.
DO NOT ATTEMPT TO DRIVE WITH THE FRONT PANEL OPEN!
Tail Panel Operation
To raise the tailgate panel:
• Open the tailgate and reach under the panel for the cable at the middle of the panel housing.
• Pull down on either cable to release both rear latches with one hand while lifting the panel with the
other hand.
DO NOT ATTEMPT TO DRIVE WITH THE TAIL PANEL IN THE PARTIALLY OPEN
POSITION! Tonneau must be folded to cab position and secured with BOTH buckles.
Additional Important Operating Tips
Tonneau cover MUST be free of foreign material including snow and ice before opening panels.
Do NOT tow your vehicle from the rear with the tonneau on your truck.
FAILURE TO FOLLOW THESE CAUTIONS MAY RESULT IN SEVERE DAMAGE AND WILL VOID YOUR WARRANTY!
Remove any snow or foreign
matter before folding cover.
Extang Corporation, 5400 S. State Street, Ann Arbor, MI 48108, 734 677-0444, Fax: 734 677-8409
Do NOT tow your vehicle from the
rear with this cover on your truck.
Visit us at: extang.com
Page 6
NOTE: To order replacement parts itʼs best to contact our Customer Service Department for
assistance to ensure getting the correct part for your vehicle application. When ordering, please
provide the 5-digit product number as referenced on your sales receipt or product identification
sticker on your tonno cover (example: 62790). Also, please specify: Year, Make, Model and Bed
Size. Additional parts information can be found on our website, at www.extang.com/install.
Customer Service: 800-877-2588
Assemb l y
Loc k C y li nd er
Assemb l y
— Drive r S i d e
Replacement Parts
Latc h
End Ca p
— Drive r S i d e
Tail Hinge
Corner Kit
Tail Hinge Corner
— Right Hand
Spacer Pad
Kit-3/ 8 ”
Strap
Assemb l y
Under B o d y Ra i l A ss em bl y -
Tail Hinge Corner
— Left Hand
Ta i l Pa n e l A ss em bl y -62
El a stomer i c
Ta i l Hi ng e
Drain C a t c h
— Drive r S i d e
-65
Drive r S i d e
Cab Hi n g e ( al um . on ly) -63
Cente r P a n e l As se mb ly -61
Hinge Seal
Pa n el L if t As s i s t
Handle
Assemb l y
Cab Panel A s s e mb ly -60
Hinge Seal
Pa n el
We a t he r Strip
Latc h
Assemb l y
— Pa s s e n g e r Side
Cab Rail S e a l
Female L a t c h
Buc k l e
Cab Panel
We a t he r
Str i p
Pa n el Wea t h e r
Str i p
Cab Hi n g e
Cap Ki t
Drain C a t c h
— Pa s s e n g e r Side
-66
Rear Cab l e a n d
Latc h A s se mb ly
Ta i l Pa n e l
We a t he r
Str i p
Pa n el
We a t he r
Str i p
Extang Corporation
5400 S. State Road
Ann Arbor, MI 48108
734 677-0444, Fax: 734 677-8409
Spacer Pad
Kit-2”
End Ca p
— Pa s s e n g e r Side
Pas s e n g e r S i d e
Under B o d y Ra i l A ss em bl y -
Un derb ody Rail Clamp Ki t
Specify: Year, Make, Model, Bed Size.
Drain H o s e
*
Register your warranty at:
extang.com
I t e m N o . 0252- 1 4 0 3 R H P r i n t e d i n U . S . A .
Loading...