Originally Posted by iknownothin
ok so if i regear, and dont add the tires my trucks gonna have a little more of a kick to it? but it will have a lower top speed (which wont bother me). and if i dont regear and get the tires im gonna have a harder time to get going?
so then larger tires, with the regearing everything will balance out?
is that what u were trying to say or did i get that wrong?
Yeah sorry I got a little long-winded. I was typing and carrying on a conversation at the same time and repeated myself.
Only adding lower gears (numerically higher) will give you some better off-the-line acceleration. it will be better for towing and such also because of the extra torque the gears provide. The trade-off is that you'll have a lower top speed, and your highway gas mileage will suffer also b/c the engine will be at higher rpms for the same speed.
Adding larger tires by themselves will act in just the opposite. You'll lose some low-end power and your city mileage will probably decrease some. But on the highway your mileage shouldn't be affected (or might get SLIGHTLY better due to the larger circumference of the tire).
The whole idea behind regearing is using these basic principles to achieve an end goal you have in mind. Drag racing cars will sometimes install lower gears to help with their acceleration off the line. Off-road trucks will install lower gears to help turn larger tires and deal with the added stress and difficulty of off-road driving. Someone who drives their vehicle primarily on the highway might install taller gears to help them conserve gas mileage. Your goal is probably to install larger tires and lower gears to get your overall outcome to be as close to stock as possible, so the gears and the tires should balance eachother out nicely.