I have an 07 reg cab with a three inch on it. I put 285-70-17s on it. I have the 2.7 engine with a manual i am wondering first if they have made gears for them yet. and what the best gearing would be. 4.11's?. also i drive on a lot of road trips. where the speed is 75. i dont want to look like some jacka$$ driving 65 at 3grand on my motor. if anyone knows these things let me know.