I am looking to buy a GMT800 Tahoe or Yukon and I have noticed that the seatbelts are built into the seat rather then the pillar. It also looks like there is no adjustment as to the height. I am 6'5" and while Tahoe/Yukon being a full-size should suit me well, I am concerned that for a longer drives, the seatbelt will be uncomfortable. Wouldn't it be pushing my shoulder down since the mounting point will be in the back below my shoulder? I hope I am making sense with my question. Any tall drivers that could chime in?