Well, now I'm down to 1.8 and 2 on channels 1 and 40 so this is probably as good as it's gonna get. Any other ideas?

 

I just finish instaling the antenna and check with a meter and it didnot have any ground in the base. I took out some paint in one of the bolts and in the bottom of the mount where i instal the stud. Now i have a good ground.

 

The overdue update.... the high SWR readings have been corrected. In addition to all the adjustments previously mentioned, I finally discovered that my antenna mounting stud had a crack in it which may have caused an undiagnosable short.

After finding this I contacted Right Channel Radios who immediately responded by placing a replacement stud in the mail. It arrived today, I installed it and now my rig tunes in between 1.5 and 1.8.

Thanks for the help that so many of you offered, and the fantastic customer service from the vendor.

 

I was having terrible SWR's with the Teraflex mount. Finally I grounded both the antenae to the mount, and the mount to the tailgate using a star washer to cut through the powdercoat. SWR's went from >3 to about 1.1. It only took me three years to figure out.