which gears would give me the best 1/4 mile times?? the truck has 3.42's now and i have 285/50R20 tires so these gears have got to go. i was thinking 4.10 (i don't want to go lower than that) also I am puting on a supercharger later this month so should i go with higher gears than the 4.10's? like 3.90's maybe? I appreciate any input.