After some more testing, I have come to two conclusions, I really had two things going on. First, changing the crossover point definitely helped the situation, although it wasn't ALL of it. The midbasses are bandpassed @100hz-1000hz/24 db. Sub picks up from 75hz down/24 db. On some music I still noticed a pull to the left, so I broke out the test tones and overlapped the midbass and sub. From 60hz-120hz I could play just the midbass with dead center imaging, no sub on. Then I would feed in the sub using my remote, as the sub came in, the image would move left, and reach peak loudness between 80-100hz with the image sitting on my right knee. Bingo. So, I moved my sub. It was behind my rear seat as the pic shows. I moved it and placed it under the seat on left, then center, then far right.
Far right is the best! I have not tested down firing yet. But with sub firing up, bass is dead center and clean and no image wandering. Now that brings the dilemma what to do. I like having my floor space in my super crew, but in actuality I rarely use it with seat folded up. I can probably get by with a single enclosure under the right side that is removable for those special cases when going camping or what not. I will probably just make a new down firing enclosure for my baby Dayton 6.5" subs that fits nicely there and go with it. The current enclosure is a bit small on port volume anyways and I can hear a little chuffing at low and loud levels. Downfiring and a larger port will most likely increase output as well. Then I will have to fill in the carpet I removed behind the rear seat LOL.