ATS Diesel Performance Converters Five Star Viskus Drive Torque Converter, GM/Chevy Duramax 2001-2010 ATS Diesel Performance The Allison 1000 is one of the stoutest transmissions behind a light duty diesel pickup truck. However, the factory converters that fail with high mileage, greater than stock power and/or frequent towing. OEM units are typically made with stamped metal components and the stall speed is not matched to the motor's torque curve. ATS Diesel Five Star Viskus Clutch ATS TripleLok and Five Star converters completely eliminate these weaknesses. They feature a patented square tab clutch design (for reliability during lock-up), ATS Diesel proprietary clutch material, CNC cut steels, re-designed stators, torrington bearings and stall speeds matched to the Allison 1000 Duramax transmission. Both the TripleLok and Five Star are designed to hold increase torque while efficiently transferring it to the transmission. The result is mo...
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