Nitro Gear & Axle 210mm 5.29 Ring & Pinion, Rear Diff

The new Ford Bronco is arguably one of the best out-of-the-box off-road vehicles on the market. Its 35" tires and stock gears keep the engine and transmission turning at just the right speed.... almost. Adding 37" tires, most people recognize the constant shifting of the transmission as it 'hunts' for a gear that works best with those larger tires. Our tests on our Bronco Badlands edition with 37-inch tires ran a little low in the RPMs, lugging that engine and transmission. This happens because the larger tires reduce your engine's RPMs below the optimal power band.

Re-gearing, the differentials in your vehicle is the only way to get it back into its optimal operating RPM range, thus improving performance and reducing strain on your vehicle's drivetrain. Re-gearing our test Bronco to 5.29 ratio gearing with 37-inch tires brought the RPMs up to a perfect 2000 at 60mph, giving the ideal shift points in the power band, resulting in more power and better fuel efficiency.

Nitro Gear & Axle strives to provide the highest quality differential components available. We take the steps necessary to ensure our parts are dependable. Our product range is continually growing to meet the needs of consumers for new ratios and Fits. At Nitro, we know differentials and know what it takes to provide you with high-quality components. Nitro gears are manufactured from 8620 steel gear forgings in the same manufacturing facilities as GM, Dodge, Ford & Toyota. They are precision machined using computer-controlled processes, heat treated, CNC triple-lapped, and Rockwell tested for hardness. These extra steps ensure excellent fitment, an ideal contact pattern, and smooth, quiet operation.

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Fitment Note: 2021 & newer Ford Bronco with optional e-locker