Minimizer B100WOA Mounting Instructions
PART NUM BER DESCRI PTI ON QTY.
PB5010 5010 TAPERED BRACKET 4
131C100BSF/R
BZ
5/16-18 X 1 HEX WASHER
HEAD BL
24
I31N150WFEZ 5/16 X 1 1/2 FENDER WASHER 24
131CNCF/RBZ
5/16-18 CLASS G FLANGE
LOCK
24
B100WOA Mounting Kit
Figure 1
B100WOA
Fender Mounting Instructions for MIN100, MIN150, MIN1600, MIN161200, MIN1900,
MIN2200, MIN2218, MIN2260, MIN2480 & MIN9950 Fenders
STEP 1
A. Unpack all cartons and lay out parts.
B. Compare the parts with the hardware kit B100WOA as shown in Figure 1.
STEP 2
A. Measure the suspension travel. This measurement is used to determine the distance
between the fender and the wheel.
a. For air suspension systems, let the air out of the air bags.
b. For spring systems, measure from the stops on the springs to the bottom of the
frame.
NOTE: For air suspensions with travel exceeding 6”:
In some cases a travel stop may need to be installed to prevent such large gaps
between the fenders & tires. This will help with alignment and 5th wheel plate clearance.
(Please call Minimizer @ 800-248-3855 for questions regarding this issue).
B. Gap the fenders ¾” over the maximum travel point of the suspension system. The goal is
to make sure the fender does not rub on the tire. A gap larger than ¾” may be necessary
if using worn tires.
Revised 12/29/2014 Page 1
Figure 2
Figure 3
NOTE: Do not drill into the weld or any other
part of the light box. If a mud flap is mounted to
the light box style fender and the mud flap is
backed over, it may cause the interior welded
plate to become loose. Slot the mud flaps to
prevent this issue. This is NOT covered under
warranty.
Figure 4
TIP: Establish the ¾” minimum gap required in Step 2B.
a. For an air suspension system, place a ¾”
board on top of the tires after the air has
been let out of the airbags (Figure 2).
Place the fender on top of the board.
b. For a spring suspension system, add ¾”
to the measurement from Step 2A.
STEP 3
A. Position the fenders exactly where they will be mounted.
a. Visually pick and mark the locations that
the brackets will attach to the frame.
B. It is possible to bolt a plate (not supplied)
to the frame and weld the brackets to that
plate (Figure 3). Another option is to weld
the bracket directly to the frame.
a. Plate should be a minimum
of ¼” thick steel.
Tip: Check owner’s manual before
welding directly to the frame. Most
manufacturers do not suggest welding
anything directly to the frame.
NOTE: Depending on the length of the truck frame and the placement of the mud flap hangers,
the fender may tuck inside the mud flap hanger. Figure 4 shows a truck with flaps and fenders.
Revised 12/29/2014 Page 2
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