1978Blazerk5
1/2 ton status
The antenna has to be mounted to a metal surface. The whip is 1/2 of the antenna and the body acts like the other half. Do not mount it on the fiberglass shell, it wont work without doing modifications that you dont want to get in to. Thats why I asked where your current mount was located. To me, it looked like it was on the shell but I couldnt tell.
were it is now is in the dead center of the cab roof. it kinda looks like the topper because of the texured paint