Dee Zee FX12358 User Manual
Before returning this product
to the store of purchase
Contact Dee Zee if you experience the following problems:
•MissingParts
•InstallationProblems/Questions
•WarrantyQuestions
1.800.779.2102
Hoursofoperation:8am-5pmCST,Mon-Friday
Reviewcompletewarrantypolicyandregisteryourproductat:
www.deezee.com
Dee Zee Running Board Installation Instructions
Congratulations on your purchase of a quality Dee Zee product. Dee Zee is
recognized as having the highest quality running boards and accessories on
the market today. We have earned this reputation by offering our customers
a product they can be proud to place on their vehicles. Dee Zee meets all
the criteria of manufacturing a custom-fit product which guarantees it to
be the easiest product to install.
Note: Please take time to read all of the instructions before beginning this installation.
War ning! Please check for wiring or other obstr uctions before drilling any holes into
the vehicle. If it is necessar y to drill any holes into the vehicle, Dee Zee recommends
putting a sealant or rust inhibitor around all holes drilled into the body of the vehicle.
War ning! It is the sole responsibility of the vehicle owner to check for tire clearance.
War ning! It is unlawful and dangerous to ride on r unning boards or side box boards
while the vehicle is in motion.
Cleaning Instructions: To maintain the bright finish of your Dee Zee running boards,
clean with a mild deter gent. For our stainless steel products and accessories, the
application of a high grade automotive type wax is recommended.
If you should happen to have any questions with this product or you have an
installation question, please feel fr ee to call us at:
1-800-779-8222
If you would like to find out mor e infor mation on Dee Zee’s products please
feel free to visit our website at:
WWW.DEEZEE.COM
BD 12349 L/R
BD 12348 L/R
BD FX12949 L/R
GSK-15
BD FX12948 L/R
X2
GSK-41
4 FT/6.25FT
MUDFLAP
1 LH / 1 RH
B 1648LP
1 LH / 1 RH
B 1648LP
X2
B 1648RP
X2
B 1382N
X2
PN 86A
X 8
Dee Zee FX Running Board Installation Instruction
FX 12958 FX 12358 / FX 12959 FX 12359 (1999 - Current) Chevy 6'/8' Box Pickup
PN 310
X8
PN 71
X8
PN 97B
X2
PN 140
X8
BLACK
PN 80
X4
PN 114B
X2
PN 113B
X2
PN 407
X2
BLACK
PN 78
X2
PN 265
X2
PN 96B
X8
PN 848-CHY
X12
PN 71B
X8
B 865
X4
PHB196
X4
PN 836
X2
SIDE BOX BOARD BULB SEAL GASKET MUD FLAP END CAPS
A B C D
LEFT BRACKET
RIGHT BRACKET SUPPORT BRACKET 1/4 X 3/4"SLOTTED
E F G H
I J K
M
1/4" FLAT WASHER 1/4" HEX NUT SHEET
METAL SCREW
1/4 X 1" PHILLIPS
N O
3/8 X 1 1/4" HEX
HEAD BOLTROUND HEAD SCREW
3/8" FLAT WASHER
L
P
HEX HEAD BOLT
#10 X 5/8" BLACK
PHILLIPS HEAD SCREW
3/8" THREADED
PLATE
Q R S
U
FX 12958 1 OF 17 6/1/2011
1/4 X 1 1/4" HEX
HEAD BOLT
1/4" HEX NUT 9" ANGLE BRACE
BLACK
V W
1/4" FENDER
WASHER
1/4 X 1" HEX
HEAD BOLT
BENT SPACER 8mm X 40mm BOLT
T
1/4" FLAT WASHER
BLACK
X
PN 325
X2
WRENCH/RATCHET
3/8", 7/16", 9/16"
TAPE
13mm, 18mm
MEASURE
TIN SNIPS
PHILLIPS SCREWDRIVER
1/8" 3/16" 1/4"
OR PHILLIPS BIT FOR DRILL
DRILL BIT
Place the bulb-seal gasket [B] onto the backlip of the runing board [A]. Cut the bulb-seal gasket
with tin snips so that it is flush with the ends of the board
Slide two 1/4 x 3/4" slotted hex head bolts [H] into both of the bolt channels on the bottom
side of the running board.
Y
8mm WASHER
TOOLS REQUIRED
1
FX 12958 2 OF 17 6/1/2011
Place the end cap [D] onto the running board as shown below. The image shown is the drivers side
side box board. Secure the end cap in place using a phillips head screwdriver and
two 1/4 x 1" black phillips head round head screws [M].
2
Place the mud flap [C] onto the running board as shown below. The image shown is the drivers side
side box board. Secure the mud flap in place using a 3/8" socket or wrench and
one black sheet metal screw [K]. Holding the end cap against the running board to minimize the
gap on the top surface, drill a 1/8" hole through the end cap and board on the bottom side .
Attached the end cap with a sheet metal screw [L].
3
FX 12958 3 OF 17 6/1/2011
The installation of the board brackets will vary depending on the model year of the vehicle.
On the following pages, find the appropriate section for your model year and follow the installtion
(or next) model year section. Once the bracket are installed, proceed to STEP 5.
1999 -2007 Driver Side Front Brace
Locate the front sub-box support as shown below. Remove the factory bolt holding the frame to
the bottom of the sub-box support using an 18mm socket and ratchet.
4
instructions. If your vehicle does not match the photos, there may be some model year crossover features.
If your vehicle model year is at the start or end of a model year change, you may need to use the previous
FX 12958 4 OF 17 6/1/2011
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