I am tall and would like to extend the driver's side seat track back so that the seat can go another 5-6" back (into crewcab space). I have power bucket cloth seats. Has anybody ever heard of this being done? If so, who can I contact to help me out. Any feedback helps!

I would try getting some flat 1/8 or 1/4 inch stock and make them as long as you need. Drill a hole on each end. Remove the seat and bolt the stock to the the seat rail and then the stock to the floor in the original holes for the seat. Hope this makes sense. I know I will get flamed for the drawing but I'm ok with that :)