Dee Zee DZ1057 - Manual (Page 7)

Place the bulb-seal gasket [F] 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
Loosely attach the mud flap [E] to the end of the running board using
the 1/4" x 3/4" hex head bolt [H], the 1/4" flat washer [J], and the 1/4" hex nut [K].
Snug the bolts, but do not completely tighten at this time.
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DZ 1057 5 of 8 8/7/2013