With a name like Richmond Gear, how could you go wrong? Simply select the gear ratio you’d like, install, and enjoy.Select a lower numerical gear ratio for better gas mileage and higher top speed (depending on the gear ratio you’re removing). Select a higher numerical gear ratio for quicker acceleration, lower top speed and slightly less gas mileage.Our Richmond Gears are the best gears made. Why trust your rear end to anyone but the best?Part numbers are shown in parenthesis next to the gear ratio – make sure the numbers match the above chart. If your gears have an amount added space, that price added to the base price (shown above) will be your final sales price.