ARB 6174921 User manual

10-02-2020 Page 1 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
DUAL CAB CLASSIC CANOPY
Isuzu DMax / GM Colorado 2012+
Dual Cab Canopy
FITTING KIT: 6174921, SEAL KIT: 6171422, FRONT RAIL: 668PD046
! PLEASE PROVIDE A COPY OF THESE INSTRUCTIONS TO THE CUSTOMER !
IMPORTANT:
Vehicle bodies and vehicle specific installation can vary, so please read the following instructions as
they refer to important information, which could affect the quality of the final installation.
It is advisable to have the canopy fitted by an authorised dealer.
The majority of installation can be completed by one person, (however, at least 2 people will be
required to lift the canopy onto the vehicle).
FITMENT:
For Bed Liners, additional time for fitting is required and trimming of bed liners is required. Fitting with
under rail bed liners is recommended ONLY (ARB part number KUL1359 or Sport guard part
number 10051584).
In addition, it will suit Isuzu Genuine accessories under rail bed liner 94778436.
Cabin Guards and Sports Bars must be removed prior to canopy fitment. These components can
be returned to the customer if required.
When fitting the ARB canopy vent, fitment of the vent is easier prior to fitting the canopy to the
vehicle and before internal frame installations. The vent must be fitted to the front of the canopy
if a roof rack is to be fitted.
CARE OF YOUR CANOPY:
Please refer to the “owner’s manual supplement” to be given to the purchaser on installation, and to
details referred to in the second last page of these fitting instructions.

10-02-2020 Page 2 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
HAVE AVAILABLE THESE SAFETY ITEMS WHEN FITTING PRODUCT:
Protective eyewear
Hearing protection
NOTE: ‘WARNING’ notes in the fitting procedure relate to OHS situations, where to avoid a potentially hazardous
situation it is suggested that protective safety gear be worn or a safe work procedure be employed. If these notes and
warnings are not heeded, injury may result.
TOOL LIST FOR FITMENT:
Torque Wrench 0-25Nm
Sockets ¼”, 10 & 13mm, socket extension bar
and driver
Spanners, ratchet type, 8, 10 and 13mm.
T30 Torx Driver
Tape measure
150mm ruler
Power or pneumatic drill
Drill bits 5mm, 6.5mm, 12mm, 14mm
12mm deep drill stops for 5mm and 6.5mm drill
bits.
Knife
Sharp scissors
File or sheet metal de-burring tool
Metal primer touch up paint
Engineer’s scribe
Sheet metal vice grip clamp
Quicklock G clamp
Centre punch
Silicon Caulking Gun
Neutral cure Non-Acetic Silicon
Phillips head screwdrivers
Flat blade screwdrivers
Side Cutters
Wire stripping tool
Non-permanent marker
Electrical tape
Masking tape
Plastic Squeegee
Cleaning cloths / rags
Angle grinder and cut off wheel
Cable ties 6 off 450mm long (not supplied)
Cable ties 8 off 200mm long (not supplied)
FITTING THE CANOPY IS UNDERTAKEN IN THE FOLLOWING STAGES:
1. Removing any sports bars & bed liners and sealing the tub
2. Fitting the tub mounting brackets. (Note details of fitting with bed liners refer to Section 7)
3. Fitting main seal before the canopy is fitted.
4. Fitting the canopy to the vehicle
5. Wiring of the canopy to the vehicle
6. Fitting the bed liners
7. Owner’s manual supplement
8. Fitment check list
NOTE: DURING THE INSTALLATION IT IS NECESSARY TO DRILL SOME HOLES THROUGH THE VEHICLE’S
TUB SHEET METAL. IT IS RECOMMENDED THAT THESE ARE DE-BURRED AND THE RUST
INHIBITOR THAT IS PROVIDED BE USED TO AVOID RUST & ANY SWARF LEFT OVER SHOULD BE
CLEANED FROM THE TUB.

10-02-2020 Page 3 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
!! IMPORTANT !! other than specifically specified in this instruction
REQUIRED SCREW TORQUES: M6=9Nm M8=22Nm
Screw torques must be adhered to avoid warranty issues and should be checked at vehicle service intervals.
THE FITTING KIT CONSISTS OF:
Packed under the canopy are:
668PD046 Front Mount Rail
Part No
Picture
Qty
Description
1. 6174921
MAIN
CANOPY
HARDWARE
KIT
6821135
2
TUBE CONVOLUTED M7 BLK 250mm LONG
668PB014
1
1650 x 26 x 6 FOAM TAPE
665037
1
ROLL- CLEAR TAILGATE PROTECTION TAPE
30MM WIDE
6821132
2
GROMMET 3/8 ID (ONE FOR SHEET METAL
SECOND ONE USE WHEN FITTING
BEDLINER)
665076
3
BUMPON STRIP OF 5 PIECES
665505
1
RUST INHIBITOR SACHET
665044
1
PRIMER STICK
180701
1
SCOTCH LOCK (14-18 AWG)
6821134
1
FUSE HOLDER BLADE TYPE
6821273
3M
WIRE 0.75MM RED CUT 3 METRE
6821127
1
3 AMP BLADE FUSE
CR07
0.5M
7MM CONVOLUTED TUBE BLACK|(BULK)
668PB010
1 Pair
TUB SEALING BLOCK - FOAM
668PB023
1 PAIR
REAR SEALING PAD –FOAM TAPE
6151625
12
M8 x 25 TORX PAN HEAD SCREW - BLACK

10-02-2020 Page 4 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
4581303
12
M8 x 25.4 x 3mm WASHER - BLACK
6151546
8
M8 x 25 BLACK HEX HEAD SCREWS
4581307
16
M8 X 20 X 2mm FLAT WASHER - BLACK
6151212
8
M8 X 1.25 BLACK NYLOC NUT
6151213
14
M6 X 20mm BLACK HEX HEAD SCREWS GD
8.8
4584310
8
M6 X 25 X 2.8mm FLAT WASHER BLACK
4581082
6
M6 x 20 x 1.2mm FLAT WASHER - BLACK
4581287
4
M6 x 2.5 x 1.6mm SPRING WASHER - BLACK
6151173
10
M6 WIZZLOCK FLANGE NUTS - BLACK
668AQ010
2
BRACKET –NUT PLATE
6250026
2
18 OD x 6.5 ID x 6 SPACER - BLACK
6250027
12
18 OD x 8.5 ID x 6 SPACER - BLACK
6609087
2
RIVET POP 3/16” DIA GRIP 4.8-11.1
668PM005
1 Pair
PAIR OF RUBBER SELF-ADHESIVE TUB
CORNER SEAL BRIDGES
3759852
2
CENTER TUB MOUNT BRACKET
6582445
2
CANOPY CLAMP - FRONT
3750205R
1
BRACKET REAR CORNER RH
3750205L
1
BRACKET REAR CORNER LH
3759968R
1
BRACKET RH FRONT TUB MOUNT D-MAX
3759968L
1
BRACKET LH FRONT TUB MOUNT D-MAX
3759969R
1
BRACKET RH REAR TUB MOUNT D-MAX
3759969L
1
BRACKET LH REAR TUB MOUNT D-MAX
2. 6171422
CANOPY SEAL
KIT
9009177
5 M
BEDRAIL SEAL
6602018
2
ALCOHOL WIPES

10-02-2020 Page 5 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
SECTION 1: PREPARING THE VEHICLE TUB –REMOVAL OF SPORTS BARS & BED LINERS
AND SEALING THE TUB.
1.1) Remove any sports bars fitted on the front bed rail of the vehicle’s tub.
1.2) The sports bar will need to be removed if fitted and returned to the customer if requested to do so.
1.3) Remove and retain all bed liner components and tie down hook hardware.
SEALING THE VEHICLE’S TUB
NOTE:
The front corners of the tub where the arrows are
shown are not sealed ex-factory on both sides. It is
necessary to seal these areas before the canopy is
fitted.
(Tub shown removed from vehicle for clarity)
1.4) Inside of the vehicle’s tub side rail at front corner,
locate the hole in the side rail in the tub and push
one of the foam blocks (668PD010) into it in the
following orientation. The foam block is
50x30x75mm. With the block sitting flat on its
50x75mm face, push it up under the side rail of the
tub and push it forward. Locate the rear edge of the
foam block so it snaps in place.
Repeat this on the opposite side.
Inside front corner of tub
Outside front corner of tub
Push foam block up and forwards into the hole in
front corner under side tub rail.
Align rear edge of the foam block so it snaps into the
edge of the sheet metal up under the front tub
corner.

10-02-2020 Page 6 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
Cover these holes and trim tape here at join
between front rail and side rail of vehicle’s tub.
Tightly butt the tape to this join.
1.5) Spray water using a spray bottle around the foam
block to aid in applying silicon cleanly. Then apply
neutral cure silicon around all edges of the foam
block where it contacts the tub sheet metal and
clean up.
Repeat this on the opposite side
SECTION 2: FITTING THE CANOPY TUB MOUNTING BRACKET SYSTEM
IF BED LINERS ARE TO BE FITTED, REFER TO SECTION 7 PRIOR TO FITMENT
2.0) Clean the front tub rail at the back of the vehicle’s
cabin with Isopropyl Alcohol and a lint free rag.
Starting from the inside edge of the side tub rails,
apply soft foam tape (668PB014) seal along the top
face of the front of the vehicle’s tub, so that it
covers the upwards facing holes. Trim tape level to
butt up to the inside of the side tub rail on the
opposite side.
2.1) Apply neutral cure silicon to the ends of the foam
tape on both sides of the tub, and spatula this down
level to the top of the foam tape.
It is important that the area between the tape and
the sheet metal is also well sealed on the vertical
end faces of the foam tape about the width of the
tape, in front and behind the tape.
Spray water using a spray bottle, down the front
internal corner junction of the tub, to aid in applying
silicon cleanly. Then apply neutral cure silicon
around all sheet metal panel gaps and clean up.
Repeat this on the opposite side.
See next page.

10-02-2020 Page 7 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
2.2) To a pair of front corner tub mounting brackets
(3759968R&L), apply self-adhesive bumpons
(665076) to the two tags on each bracket. These
legs are to sit with the bumpons face down touching
the top edge of the vehicle’s tub once the bracket is
fitted
IF FITTING BED LINER GO TO SECTION 6.0
2.3) Place in the LH front corner of the tub the front tub
mounting bracket (3759968L) fit screws to the three
holes on the side of the tub and Tighten to 22Nm
Repeat on the opposite side using the opposite
hand tub mounting bracket
2.4) Using a 6.5mm drill fitted with a 12mm drill stop to
prevent drilling into the outside tub sheet metal
skin, drill into the rear hole in the front corner
bracket and through the flange on the tub sheet
metal.
Apply rust inhibitor around the hole.
2.5) Insert into the hole an M6 x 20mm (6151213) Hex
Screw with M6 x 25mm Flat Washer (4584310)
under the head and M6 Flange Nut (6151773) on
the back, inside the tub lip flange.
Tighten to 9Nm
Repeat on the opposite side using the opposite
hand front tub mounting bracket
Use from the kit M8 x 25 Torx head screw
(6151625) (use T40 bit) and M8 x 25.4mm flat
washers (4581303) in these 3 places.
Apply silicon to
tub joins in front
corners inside
and outside.

10-02-2020 Page 8 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
2.6) There are 2 alternatives to fixing the front tags of the
front tub mounting brackets to the front wall of the
tub:
Option A:
If a sports bar has been fitted, existing nutserts will
be mounted in the front wall of the tub.
For Option A:
Fit M8 x 25 Torx head screws (6151625) (use T40 bit)
and M8 x 25.4mm (4581303) flat washers. Do these
screws up to 18Nm
2.7) Option B:
If no nutsert exists, the front legs of the mounting
brackets are to be riveted to the front tub wall.
For Option B: Drill a 5.2mm hole through the hole
already provided in the brackets through the front tub
sheet metal wall using a drill stop set to 10mm deep.
Apply rust inhibitor to the holes.
Fit a pop rivet (6609087) to the hole in each front tub
bracket and secure them in place.
Repeat for the opposite side

10-02-2020 Page 9 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
2.8) Place 668PD046 front tub mount rail over the front
of the tub, foam tape and top lip of the bed liner (if
fitted). The “C” section shape of the bracket is to
point down and the small flange lip on the bracket is
to be orientated to the inside of the tub to retain the
top edge of any bed liner (if bed liner is fitted).
Align the front tub mount rail so the ends of it have
equal gaps to the vehicle’s side tub walls and inner
face is against the mating Front Mounting Brackets.
Then align the holes in the end of rails with the 2
holes in the in the tags of the front tub mounting
brackets.
!! IMPORTANT !!
Push down on the front mount rail at the ends so
that it is level to the top face of the vehicle’s side
tub walls while doing the screws up. A clamp can
be used to hold the front rail level with the top face
of the side tub walls.
2.9) Insert into the holes in the front corner brackets on
both sides an M6x20mm hex screw (6151213) with
M6 spring washer (4581287) and M6 x 25mm flat
washer (4584310) and do the screw up into weld
nut plate (668AQ010) on the inside of the front
mount rail to 9Nm.
When doing up the weld nut plate, hide
this leg behind the front mount rail.
Flange lip on
inside
Equal
gap on
both
ends

10-02-2020 Page 10 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
2.10) Apply to either end of the front mount rail a bridge
seal (668PM005), by removing the backing paper
off the adhesive side and sticking it down to the
dimensions shown opposite. The ramp profile
should go between the front header rail and the
side of the tub as a bridge.
!! IMPORTANT !!
POSITION THE SEAL BRIDGE EACTLY AS
SHOWN OR FRONT CORNER WATER LEAKS
COULD OCCUR
2.11) Apply silicon to the join areas underneath the
bridge seal to stop water leaks.
The bridge seal provides a transition from the
front tub mount rail to the top of the side tub walls
to provide a sealing surface to the seal that is
mounted on the underside of the canopy.
2.12) Prepare a pair of rear tub mounting bracket
(3759969R&L) with self-adhesive bumpons
(665076) applied in 5 places as shown. These
legs are to sit with the bumpons face down
touching the top edge of the vehicle’s tub once
the bracket is fitted
2.13) Apply Foam Pad 668PB023 to the rear of the
Rear Mounting Brackets as shown opposite by
aligning the foam pad with the edges of the
bracket
Repeat for the opposite hand
Align seal bridge front edge 5mm rearward from
the front edge of front mount rail and 20mm over
onto the side tub rail. Do this on both sides.
20mm
Aligned

10-02-2020 Page 11 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
2.14) Remove the existing screws from the rear top
corners of the tub. Place LH rear tub mounting
bracket (3759969L) over the holes.
IF FITTING BED LINER GO TO SECTION 7
Repeat on the opposite side using the
opposite hand tub mounting bracket
2.15) Drill the hole in the front of the bracket using a
6.5mm drill bit to a depth of 15mm using a drill
stop. Apply rust inhibitor to the hole.
Insert into the hole an M6 x 20mm Hex Screw
(6151213) with M6 x 25mm (4584310) Flat
Washer under the head and M6 Flange Nut
(6151173) on the back, inside the tub lip flange.
Tighten to 9Nm
If fitting a Bed Liner, place 6250026 behind the
bracket prior to fitting.
Repeat on the opposite side using the
opposite hand tub mounting bracket.
SECTION 3: FITTING THE SEALS
3.0) From the seal kit (6171422), clean the top of the
vehicle’s side tub rails down using alcohol wipes.
Apply the seal (9009177) in the orientation as
shown,
Starting at the rear and against the foam pad.
Use from the kit M8 x 25 Torx head screw (6151625)
(use T40 bit) and M8 x 25.4mm flat washers (4581303)
in these 2 places and tighten to 22Nm.
This side to the
outside of the vehicle

10-02-2020 Page 12 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
3.1) Align the seal along the sides of the tub. Ensure the
seal inner edge is aligned to touch the tags on the
rear corner brackets on the inner edge.
Apply the seal with firm pressure to the tub.
3.2) Around the front corners of the tub, apply the
primer stick (665044) to the front rubber bridges.
(Break the vial at the dots by squeezing and wet out
the felt tip to apply the primer). Allow the primer to
dry.
3.3) Apply the seal along to the front bracket at an even
offset to the inside of the tub. Ensure the seal inner
edge is aligned to touch the tags on the front corner
brackets on the inner edge.
Apply the seal with firm pressure to the tub.

10-02-2020 Page 13 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
3.4) Curve the seal without puckering around the
front corners and apply it no further forwards
than half the width of the rubber seal bridge.
Ensure the double-sided tape on the seal goes
up the ramp of the tub bridge and is not
stepped up across the corner of the tub bridge
which could cause water leaks. Apply firm
pressure to the seal over the tub bridge rubber
extrusion.
3.5) Apply the seal along the front head board bracket
aligned at 20mm offset between the inner edge
of the seal and the inner edge of the head
board rail. Apply the seal with firm pressure to
the tub.
3.6) Finish applying the seal to the other side of the tub.
3.7) Apply neutral cure silicon to edge of the bed seal
around the front corners both inside and outside of
the seal. Clean off excess with a rag applied
sparingly with silicon remover or wax and grease
remover carefully.
3.8) Apply neutral cure silicon to inside of each end of
the rail top corners. Clean off excess with a rag and
silicon remover or wax and grease remover
carefully.
20mm

10-02-2020 Page 14 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
SECTION 4: FITTING THE CANOPY
4.0) Close the vehicle’s tailgate. Lift the canopy onto the
vehicle with 2 people. Avoid dragging the canopy
on the seals mounted on the tub as this could
dislodge them. Lift and place the canopy down
onto the vehicle’s tub. Open the door and tailgate.
The holes in the rear base rail corner inside,
should align to the centres of the slots on the
rear tub mounting brackets. Ensure the canopy
is evenly aligned on both sides to the tub and to
the vehicle’s cabin. Ensure pressure from the
door lower glass edge to the tailgate is not
excessive
There MUST BE 25mm or more clearance from
the canopy front pillars to the vehicle’s cabin
rear pillars. This is easily measured by inserting
a socket or round object with a 25mm outer
diameter between the canopy and cabin.
4.1) Align the holes in the base rail so the slots are
centred to the rear tub mounting brackets.
Ensure the gap between the door glass and the
door frame is even, and between 5 and 7mm.
Through the holes in the rear corner brackets fit
M8x25mm hex bolts (6151546) with M8x20mm
washers (4581307) down through the holes in the
top of the canopy’s base rail. Apply M8x20 washer
(4581307) and M8 nyloc nut (6151212) up from
underneath and tighten to 22Nm to the rear tub
mounting brackets.
4.2) Through the holes in the front corner brackets fit
M8x25mm hex bolts with M8x20mm washers down
through 6582445 Canopy Clamp making sure the
clamp is bearing down on the canopy base rails.
Apply M8x20 washer and nyloc nut up from
underneath and tighten to 22Nm.
5-7mm
25mm Minimum
Must not be less

10-02-2020 Page 15 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
4.3) Locate the hole in the centre of the base rail on the
inside of the canopy. Clamp bracket (3759852) to the
tub lip aligning the top hole in the base rail of the
canopy. Apply an M6x20mm hex bolt (6151213) with
M6x20mm (4581082) washer down through the hole in
the top of the base rail. and tighten to 9Nm.
Do this on both sides of the vehicle.
4.4) Drill a 6.5mm through the uppermost hole location in
the (3759852) brackets with a 12mm deep drill stop
fitted. Remove any swarf.
4.5) Apply rust inhibitor to the holes. Fit M6 x 20 mm hex
bolt (6151213), M6 x 25mm flat washer (4584310)
through the bracket and on the inside secure with M6
wizzlock (6151773) flange nuts. Tighten to 9Nm.
4.6) Cut the lower door gutter seals in line with the top of the
tailgate on both sides of the door so they just
touch the top of the vehicle’s tailgate

10-02-2020 Page 16 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
4.7) Cut the lower door sash seal attached to the glass on the
door at both ends to match the corners of the glass.
4.8) Fit both 3750205R&L rear corner brackets to bed rails
using M6 x 20 bolts, M6 x 20 washers and M6 flange
nuts.
Position in the corner close to but not touching the door
frame.
Do nuts up to 9Nm
4.9) With the tailgate down and door open, apply neutral cure
silicon up into the rear corner tailgate sealing
bracket areas, between the tub and the door frame and
canopy base rail and on the inside between the
bracket, door frame and shell to fully seal.
Clean up excess and smooth the silicon down on the
inside of the canopy.

10-02-2020 Page 17 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
4.10) Apply masking tape to the vehicle’s tailgate level with
the door’s lower glass edge.
4.11) Starting at the edge of the tailgate, roll out the clear
protection tape (665037) and start partially by removing
the tape backing liner as small section at a time.
4.12) Push out bubbles and wrinkles as the tape is being laid
down, working from one end of the tape with a
squeegee.
Trim the clear tape at the end level with the end of the
tailgate.
Remove the masking tape at completion.

10-02-2020 Page 18 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
SECTION 5: WIRING THE CANOPY
IMPORTANT
WIRING INSTALLATION IS DIFFERENT FOR GMH COLORADO AND ISUZU DMAX
Splicing into the rear taillights of a Colorado will cause the canopy brake light to run when the vehicles clearance lights
are activated.
THE FOLLOWING INSTRUCTIONS ARE DIVIDED INTO TWO SECTIONS FOR
COLORADO / ISUZU DMAX
IF FITTING THE CANOPY TO THE ISUZU DMAX; Go to page 21
COLORADO WIRING ONLY
5.1) Go to the right-hand side rear door. Using panel
removal tools, carefully remove the bottom kick
panel and pinch weld seal. Using the removal tools
pry the rear corner cover piece away, exposing the
metal surfaces.
5.2) Locate the high mount stoplight power wire.
This should be PURPLE/WHITE. Double check all
wires, as to ensure the seat belt pre-tensioners or
interior light are not picked up.

10-02-2020 Page 19 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
5.3) Scotch lock the loose 0.85mm red wire to the vehicle
brake wire. Cut the PURPLE/WHITE wire on the
brake side of the Scotch Lock to disconnect the high
mount stop light. Tape the scotch lock to avoid
rattles
5.4) Drill a 12 mm hole into the sheet metal into the
cavity in the lower rear corner as shown. Deburr the
hole, thoroughly clean away any swarf. Paint any
bare metal to prevent corrosion.
5.5) Using convoluted tube, and grommet. Feed the red
wire from the cabin into the rear corner cavity.
Feed the wire and tube out of the cavity through the
lower slot.
Cut the slot shaped grommet to fit over the
convoluted tube. Reinstall the slot shaped grommet
with convoluted tube.
Underneath the vehicle, locate and remove the slot
shaped grommet which leads into the rear corner cavity
where shown.
NOTE: A trace may aid installation through the
cavity. It is possible to “view” inside the cavity, by
removing the outer grommet shown in the picture
above.
VIEWING HOLE
EXISTING SLOT
UNDERNEATH VEHICLE
IN THIS SECTION

10-02-2020 Page 20 of 32 ARB Copyright 2017 3789736
If you have any queries regarding the installation of this product please contact the distributor from whom it was purchased, or alternatively the ARB office in your state.
Head Office –ARB Corporation Ltd VIC: 42-44 Garden Street, Kilsyth, Victoria, 3137 Tel: [phone] Fax: [phone]
WA:[phone] NSW: [phone] ACT: [phone] SA: [phone] QLD: [phone] NT: [phone] TAS: [phone]
5.6) Remove tail light assembly right hand side. Do this
by first undoing the 2 screws in the tailgate opening.
Then push the light backward
5.7) Drill 12mm hole through ute body / liner as shown.
Deburr and paint any bare metal, clean away any
swarf.
5.8) Run 2 Core Sheathed Wire (RED Positive BLACK
Negative) and Stop Light (BLACK WHITE Positive)
from the door frame through 250mm length of
conduit in behind rear taillight.
Fit grommet to hole in body.
Fit the conduit to the doorframe and through the ute
body / liner.
5.9) Continue feeding convoluted tube with dual core wire
down the chassis rail to the red wire exiting the
cabin, avoiding any sharp hot or moving objects.DO
NOT CABLE TIE THE CONVOLUTED TUBE YET.
Feed the loose red wire through the convoluted tube
back up into the tail light cavity. Scotch lock the
LOOSE RED wire to the canopy brake light wire
(BLACK/WHITE).
Test the brake light to ensure it works.