BD Diesel - 1604721
Shift Kit - Chevy/GMC 6.6L Duramax Allison 1000 2006-2008 6spd
Installation recommendation: Experienced technician; Includes our exclusive Smart Trim/Clutch Control valve assemblies and items to modify the C2 clutch piston for increased capacity and more durability. The C2 clutch is the weakest part of the early 5 Speed Allison; Addresses goes to neutral under load; 3-4 slip; burned C2/C3 clutches; sticks in one gear; won't move after extended parking; loss of pump prime; smart clutch control valves for increased durability; SHORT-CRISP-SMOOTH-upshifts & kickdowns; Handles 500 Street Horsepower
- Experienced Technician Installation Recommended
- Keep On Hand In Case You Ever Run Into Trouble
- Addresses Going To Neutral Under Loads
- 3/4 Slip
- Burned C2 Or C3 Clutches
- Sticks In One Gear
- Wont Move After Extended Parking
- Smart Clutch Control Valves For Increased Durability
- Short Crisp Smooth Upshifts And Kickdowns
- Handles 500 Street Horsepower
- Refer To Manufacturers Warranty