Zf M/T 3RD Gear Counter 6SPD . 3rd Gear Counter ZF Manual Transmission 6-speed Features and Benefits: 3rd Gear Counter ZF Manual Transmission 6-speed Details: AAP UDA 4: 55 Grade Type: Regular Application Summary: 2001-2006 Chevrolet Silverado 2500 Hd (3rd) (Transmission Code: S6-650/ML6, S6-650 & Transmission Base Gear: 6 & Transmission Control Type: Manual) 2001-2006 Chevrolet Silverado 3500 (3rd) (Transmission Code: S6-650/ML6, S6-650 & Transmission Base Gear: 6 & Transmission Control Type: Manual) 2004-2006 Chevrolet C4500 Kodiak (3rd) (Transmission Code: S6-650 & Transmission Base Gear: 6 & Transmission Control Type: Manual) 2004-2006 Chevrolet C5500 Kodiak (3rd) (Transmission Code: S6-650 & Transmission Base Gear: 6 & Transmission Control Type: Manual) 2001-2006 GMC Sierra 2500 Hd (3rd) (Transmission Code: S6-650/ML6, S6-650 & Transmission Base Gear: 6 & Transmission Control Type: Manual) 2001-2006 GMC Sierra 3500 (3rd) (Transmission Code: S6-650/ML6, S6-650 & Transmission Base Gear: 6 & Transmission Control Type: Manual) 2004-2006 GMC C4500 Topkick (3rd) (Transmission Code: S6-650 & Transmission Base Gear: 6 & Transmission Control Type: Manual) 2004-2006 GMC C5500 Topkick (3rd) (Transmission Code: S6-650 & Transmission Base Gear: 6 & Transmission Control Type: Manual) 1999-2010 Ford F-250 Super Duty (3rd) (Transmission Code: S6-650 & Transmission Base Gear: 6 & Transmission Control Type: Manual) 1999-2010 Ford F-350 Super Duty (3rd) (Transmission Code: S6-650 & Transmission Base Gear: 6 & Transmission Control Type: Manual) 1999-2010 Ford F-450 Super Duty (3rd) (Transmission Code: S6-650 & Transmission Base Gear: 6 & Transmission Control Type: Manual) 1999-2010 Ford F-550 Super Duty (3rd) (Transmission Code: S6-650 & Transmission Base Gear: 6 & Transmission Control Type: Manual)