NITRO GEAR & AXLE – Differential Parts You Can Depend On. 

Nitro Gear & Axle strives to provide the highest quality differential components available. Nitro gears are among the best in the industry. By using better materials, better machining and better lapping and heat treating processes, Nitro can ensure a strong, quiet-running, long-lasting setup. Each new product is subjected to multi-point inspections and then actually installed and set up by Nitro's own in-house differential experts to ensure excellent fitment and easy setup.