Try a wilson 2000 with a long enough shaft to get the coil above your cab. Usually a 10 in shaft will do. That and decent coax shold get you in the right direction. 1.3 or less on the swr. The radiation isn't that bad either... I only started to have a shoulder twitch just ever so slightly after keying my radio and singing 99 bottles of beer for 2 hours. j/k lol