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Tandem Fender & Bracket
C
E
E
C
E
C
C
E
E E
FLAT
RUBBER
WASHERS
ROUNDED
RUBBER
WASHERS
METAL
WASHERS
LOCK
NUT
FLAT
RUBBER
WASHERS
METAL
WASHERS
LOCK
NUT
ROUND
RUBBER
WASHERS
FLAT
RUBBER
WASHERS
WELD
MOUNTING
PLATE
TO
BRACKET
MOUNT
RECOMMENDED
TORQUE IS
245 FT. LBS.
B
METAL
WASHERS
LOCK NUT
A
RUBBER
WASHERS
METAL
WASHERS
LOCK
NUT
RECOMMENDED
TORQUE IS
245 FT. LBS.
Installation Instructions
Installation Sheet #INS-98009
1. Determine proper fender position for your application.
Position fender over tire(s). Use a 2”x4” block tor other
suitable spacer to achieve desired clearance areound
tires. For optimum performance, the fender should be 3”
to 6” from tire. (S.A.E. recommendation is 3” minimum)
Note: If you have an air suspension, make sure there is
tire clearance when the suspension is deflated.
Figure 1 shows general locations of mounts on various
tandem fenders (E=end mount, C=center mount). Place
bracket against fender and frame, mark the location of
the mounting holes on the frame.
The mounting support
brackets and tandem
fenders are purposely not pre-drilled
because of the many
vehicle variations and
side frame clearance
problems. Drilling
to suit offers added
flexibility for mounting
without defacing the
fender with unnecessary holes.
2. Attach Mounting Brackets
Use appropriate instructions
A. 4 Hole Bracket (FIG. 2)
Drill four 7/16” holes on
marks and fasten mounting
bracket to frame. Hardware
needed: Four 3/8”- hex bolts
and four 3/8”-16 nuts per
mount (not supplied).
B. Single Hole
Bracket (FIG. 3)
Drill 11/16” dia. hole on
mark and fasten mounting
bracket to frame using one
5/8” - 11 x 1-3/4” grade 8
NY-lock bolt and one 5/8”
split lock washer, supplied
Be sure to follow truck manufacturers recommended
procedures for drilling any required holes in the frame.
FIGURE 1
Double Radius
Tandem Fender
Tandem Fender
Half
FIGURE 2
Four Hole
Bracket
FIGURE 3
Full Round
Tandem Fender
Single Radius
Tandem Fender
Single Hole
Bracket
RECOMMENDED
TORQUE IS
245 FT. LBS.
3. Next, position tandem fender on mount support
brackets and attach according to mount type listed
below. NOTE: Rubber washers MUST be assembled
next to the tandem fender as shown
A. STANDARD CENTER MOUNT ASSEMBLY (FIG. 4)
Drill four 3/8” holes
through lower ribs of
FIGURE 4
fender and through
mounting support
bracket. Fasten fender to mount as shown.
Hardware supplied:
Four 5/16”-18 x 1”
bolts, four
5/16”-18 lock nuts,
four 5/16” metal
washers and eight
rubber washers.
B. END MOUNT ASSEMBLY (FIG. 5)
Drill three 3/8” holes
through flat ribs of
FIGURE 5
fender and through
mounting support
bracket. Fasten
fender to mount as
shown. Hardware
supplied: Three 5/16”18 x 2-1/2” bolts,
three 5/16”-18 lock
nuts, three 5/16”
metal washers and
six rubber washers.
C. POST STYLE CENTER MOUNT ASSEMBLY (FIG. 6)
Drill four 3/8” holes
through lower ribs of
FIGURE 6
fender and through
mounting plate. Adjust to desired position and weld plate
to bracket mount
as shown. Hardware supplied: Four
5/16”-18 x 1” bolts,
four 5/16”-18 lock
nuts, four 5/16” metal
washers and eight
rubber washers.
D. POST STYLE END MOUNT ASSEMBLY (FIG. 7)
Drill three 3/8” holes
through flat ribs of
FIGURE 7
fender and through
mounting support
bracket. Fasten fender
to mount as shown.
Hardware supplied:
Three 5/16”-18 x 2-1/2”
bolts, three 5/16”-18
lock nuts, three 5/16”
metal washers and six
rubber washers.
Installation Sheet # INS-98009 • 1998 • Rev. C 12/06
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