So, I got my lift, 5:38's and 37's all finished up yesterday. During my test drive, I knew my speedo would be off, but I figured I would just use the nav system for my mph until I get my DS trinity installed. Turns out I was wrong, the nav system is off just as much as the speedo. Does this make sense to anyone? I figured the nav's mph would have it's own signal like a normal gps. Anyone else have this issue?