Eaton Torque Control Products 250S37 NoSPIN Automatic Locking Differential

The Eaton NoSPIN 250S37 is an automatic locking differential designed for light trucks and SUVs. This performance differential provides the traction advantages of a locker with smooth, automatic operation that requires no driver intervention or modifications to the vehicle.

Key Features:

• Fits Eaton 15201 differential housings
• 16 spline axle shaft configuration
• 1.87 inch axle shaft diameter compatibility
• Automatic engagement and disengagement based on traction needs
• No maintenance required - lifetime lubrication sealed in unit
• Significantly improves traction in snow, mud, ice, and off-road conditions
• Smooth operation during normal driving with automatic locking when wheel slip is detected

The NoSPIN differential uses a unique driver and coupler design that automatically locks and unlocks based on torque transfer. When one wheel loses traction, the unit locks instantly to transfer power to the wheel with grip. During normal cornering, it unlocks smoothly to allow proper wheel speed differentiation. This design eliminates the harsh engagement characteristics of traditional lockers while providing superior traction compared to limited-slip differentials.

Installation requires complete differential disassembly and should be performed by a qualified technician. The NoSPIN replaces the entire spider gear assembly in the carrier.