[jocko]

My 2 cents only - probably only a noticeable change if you are doing some aggressive racing/stop/go, etc. Bigger disk equals a bit more bite, but really means better heat dissipation to provide sustained level of braking over a longer period (like road racing, etc). So, unless you're really hitting the race circuit, I don't think it would be worth it from a performance perspective. On the other hand - there's looks. If you have large dia open wheels, stock size disk looks kinda small behind the wheel.. If hidden, I wouldn't bother. If you think it's worth it from a show perspective (and there's nothing wrong with that, lots of folks build em to look good too - and I know your truck already has lots of custom touches) then it might be worth the cost to you.