Find the Manual Transmission Hydraulics you need for the stock replacement or upgraded clutch on your 2001-2004 Chevy/GMC 6.6L LB7 Duramax. Keep your manual trans properly operating with products from industry leading brands like Valair, Dorman, South Bend Clutch, and more! In most applications the clutch master and slave cylinder assembly are sold as a pre-filled and bled set that are ready for installation. Ensure your clutch operates properly when you shop at XDP!