You want your antenna to be as high up as possible with the largest ground plane possible. A ground plane is basically anything connected to the - side of your battery (the truck body). So your antenna should be right in the middle of the largest ground plane, such as your roof. You should also get an SWR meter to match the antenna to the CB


1984 Toyota Pickup
22R, carbureted
Aussie lockers front n rear
4.88 gears
35's
Full exo
Marlin crawler