Increased acceleration: The 4.10 gear ratio will make your car accelerate more quickly from a stop and will also give you better passing power. This is because the lower gear ratio allows the engine to spin faster for a given speed, which in turn produces more torque.
Decreased top speed: The 4.10 gear ratio will also decrease your car's top speed. This is because the engine will spin faster at a given speed, which in turn will cause the car to reach its top speed sooner.
Improved handling: The 4.10 gear ratio will improve your car's handling by making it more responsive to steering inputs. This is because the lower gear ratio provides more engine braking, which helps to stabilize the car when you're cornering.
Increased fuel consumption: The 4.10 gear ratio will also increase your car's fuel consumption. This is because the engine will have to work harder to spin the wheels, which in turn will burn more fuel.
More noise and vibration: The 4.10 gear ratio will also produce more noise and vibration than the stock gear ratio. This is because the gears will be spinning faster, which will create more friction and noise.
Overall, the 4.10 gear ratio will make your 1998 Trans Am more fun to drive but will also come with some trade-offs, such as decreased top speed and increased fuel consumption.