Pedro,

The wheel arch is the 16" style and is attached to the door. The idea here
is to keep your clothing clean when entering or leaving the truck. The
wheel arch acts like a mud/water shield and keeps the actual wheel arch
area clean.

The gate brush bars are attached with 3 bolts each. The bolts are actually
placed through the top edge of the gate, and are secured to a special flat
steel bar that runs the length of the gate under the top edge. The steel
bar is drilled and tapped to accept the mounting bolts.

When we reassembled the brush guards and the roll bar after restoration
and painting, it took 4 of us over 4 hours to reattach the parts. They are
VERY securely attached.

Michael