
1st thing I did was draw a center line between both of the original holes. Next mark the first drill hole 1.25 inches from the center of left original hole and then 2.5 inches from the center of the first hole. I did this on both sides of the mover arm.

Next I got a hammer & a punch or a nail to indent the x mark as to not let the drill drift off the center mark because this has to be precise. I did not have a drill press handy so I had to do it by hand.
Using a small drill bit I made a pilot hole for the larger bit that precisely matches the exact diameter of the bolts supplied by Winegard.

I next drilled 4 - 5/16 holes (2 each side)
