Gear and Axles

“Do I need to change my axle gears with bigger tires?” Great question! And your answer is simple. Probably not. Most people think that just because they went up a little in tire size that new gears are needed. But the truth is, it all depends on how much bigger you plan on going, what you’re driving and what your plans are with your vehicle. For example, if you’re driving a diesel truck with a small tire size increase, changing your gears are not needed for the simple fact that your truck already has enough torque to compensate. But maybe you noticed a loss of power and mileage after installing 37” tires. In that case a simple math equation may help you out in your decision.

(new tire / old tire) x original axle ratio = new axle ratio

Another factor in gear swapping is the need of a tuner or speedometer calibration tool. This will help ensure your gauge is reading true, shift points are right and eliminate correlation problems in your ABS system. Now if you’re an avid off-roader and need that initial torque and strength you’ll need new gears, lockers, upgrading driveshafts or strengthening your axle with a weld on axle truss. Still not sure? <a href="/contact-us">Click Here</a> and message us and we’ll walk you through your options and make sure you’re getting what you need.