Yukon Gear Differential Ring and Pinion; Rear; Dana 300mm; Ring and Pinion Set; 4.88-Ratio; 32-Spline Pinion; 2.125-Inch Diameter Pinion Bearing Journal; Fits 4 Series 4.10 and Up Carrier (17-18 F-350 Super Duty)Find parts that fit my vehicle

High Performance Replacement. The Yukon Gear Differential Ring and Pinion; Rear; Dana 300mm; Ring and Pinion Set; 4.88-Ratio; 37-Spline Pinion; 2.125-Inch Diameter Pinion Bearing Journal; Fits 4 Series 4.10 and Up Carrier is designed to enhance the performance and durability of your vehicle’s drivetrain. This ring and pinion set restores proper gear ratios for optimized torque and speed balance, crucial for heavy-duty use. Proper gear engagement ensures smooth power transfer and long-term reliability under demanding conditions.

Construction and Appearance. Manufactured from premium-grade alloy steel, this set undergoes precise heat treating and CNC machining for superior strength and extended service life. The components feature a durable coating to resist corrosion and wear, preserving their performance and appearance.

Installation. Requires moderate mechanical skills and appropriate tools for differential setup and gear pattern verification. No drilling or modification of the axle housing is necessary, providing a direct fit for compatible models.

Application. Specifically engineered for 2017-2018 F-350 Super Duty models equipped with Dana M300 axles featuring 37 spline shafts. Not compatible with F-450 models due to differences in spline count and the absence of a 3 series case.

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