downriverT

i want to put new gears in the car(its getting warm and i have the mod bug real bad). need the basics and in depth knowledge. its pretty much a daily driver if it snows i dont drive it everything else it goes. want to start taking it to the track a whole lot more and beat up on em in the street. what would u recommend. thanks for all advice and if anyone here is from detroit a shop to install them would be helpful.