the truck still seems to shift nice..has pretty good pick up and the speedo even seems very close...i thought the speedo would be farther off....would 4:56 be worth the $$$$$ im thinking it feels pretty good the way it is..not been off road yet..but>> what ya think?should i have truespeed sensor?? gears? will the tranny be ok the way it is?? any suggestions what would your next mod be on this truck??