Dana Spicer 30185 Differential Drive Pinion Gear Nut - Front Differential or Rear Differential

Durable Differential Drive Pinion Gear Nut for Multiple Vehicles

The Dana Spicer FSGR Differential Drive Pinion Gear Nut 30185 is engineered for reliable performance in driveline and axle assemblies. Designed to meet the demands of various Chevrolet, Ford, Dodge, GMC, Jeep, and other vehicle models, this steel nut ensures secure fastening of the differential drive pinion gear.

• Flange diameter: 28.135 mm for precise fitment
• Hex size: 27.890 mm for standard wrench compatibility
• Constructed from durable steel material
• Self-locking design to prevent loosening under torque
• Thread size: 0.750-16 for secure threading
• Thickness: 14.275 mm for optimal strength
• Torque specification: 400 ft/lbs shaft not torque

About the Dana Spicer FSGR Product Line

The FSGR line from Dana Spicer focuses on hardware, fasteners, and fittings designed for driveline and axle applications. This series supports a wide range of vehicle models and is built to meet stringent durability and performance standards. The 30185 pinion gear nut is part of this comprehensive line, providing consistent quality and fitment across multiple makes and models.

Technical Details and Compatibility

The Dana Spicer 30185 pinion gear nut features a flange diameter of 28.135 mm and a hex size of 27.890 mm, making it compatible with standard tools for installation and maintenance. Its steel construction offers strength and resistance to wear, while the self-locking feature ensures the nut remains securely fastened under high torque conditions up to 400 ft/lbs. The thread size of 0.750-16 and thickness of 14.275 mm are designed to match OEM specifications for reliable driveline performance.

Compatible Vehicles and Applications

• Chevrolet models including Blazer, Camaro, Suburban series, and Corvette
• Ford trucks and SUVs such as F-100, F-150, F-250, F-350, Bronco, and Explorer
• Dodge and Ram trucks including Ram 1500 and Ram 2500
• Jeep models like Cherokee, Grand Cherokee, Wrangler, and Scrambler
• Other makes including GMC, Isuzu, Lincoln, Mercury, Pontiac, and Volvo

Common Issues Addressed by This Pinion Gear Nut

• Preventing pinion gear loosening under high torque conditions
• Maintaining proper differential gear alignment
• Reducing risk of driveline vibration caused by loose fasteners
• Ensuring secure fastening in heavy-duty truck and SUV applications
• Replacing worn or damaged pinion gear nuts to restore driveline integrity

Installation Notes and Tips

When installing the Dana Spicer 30185 pinion gear nut, ensure the threads are clean and free of debris. Use a torque wrench to apply the specified 400 ft/lbs torque to avoid over-tightening or under-tightening. The self-locking feature eliminates the need for additional locking compounds, but verify proper seating of the nut on the pinion shaft flange. Always consult the vehicle’s service manual for specific installation procedures related to your make and model.

Quality Assurance and Warranty

Dana Spicer manufactures the 30185 pinion gear nut to meet OEM standards for strength and durability. The steel construction and self-locking design contribute to long service life in demanding driveline environments. While specific warranty details are not provided, Dana Spicer products typically adhere to industry quality controls to ensure reliable performance in Chevrolet, Ford, Dodge, Jeep, and other compatible vehicles.