Select where you want your antenna. I picked the rear of the cab because it is the most horizontal surface.
Place tape where the bottom hole is to be, mark and drill pilot hole. Then using a level, draw a line up to where the top will be.
Before drilling the bottom hole, make sure it clears the internal cross brace.
Mark where top hole will be and verify it also clears the upper cross brace.
Withe both pilot holes drilled, now drill the correct hole size and debur.
Remove tape and treat holes edges to prevent rust.
Mount antenna. I adjusted mine to be below the cab top when fully collapsed.
Connect antenna lead.
Attach Gadsden flag with ty-wraps.