Beyond the rigors of every day competition, all products are proven and validated at Eaton's Proving Grounds in Marshall, Michigan, where it has complete testing facilities and on-road/off-road test tracks

• Located on 600 Acres
• 1.6 Mile Oval Track
• Rally Course
• 20% Split Mu Grade
• Sand Pit
• Twist Ditch
• 45% & 60% Hill Climb
• Log Walk
• Rock Crawl
• Swamp Course
• Michigan Center for Decision Driving

Eaton's design, manufacturing and testing resources are unmatched in the performance aftermarket.

• Engine and Transmission Testing
• Component Performance and Durability Testing
• Full Dimensional Inspection Capabilities
• Complete Standards and Calibration Laboratory
• Full Vehicle Cold Testing to -40 Centigrade
• Vehicle Noise and Vibration Testing

Without an Eaton differential, rollers under the left rear wheels of this truck would prevent it from climbing the steep 20% grade in this test area.

An extensive series of moguls are used to test the effectiveness and reliablity of our differentials.

Our mud pit simulates real-world off road conditions.

This rock run is one of our more demanding tests.

Eaton tests a wide variety of vehicles that use our parts, such as this full-sized Hummer.

This curving "twist ditch" simulates off road conditions requiring an Eaton differential.

Three pickups negotiate our "straight ditch" test course.