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

Performance shift kit for the Allison 1000 valve body to improve pressures and shifting.

BD Diesel Shift Kit - Chevy Allison 1000 2006-2008 6spd

Shift Kit - Chevy Allison 1000 2006-2008 6spd

Shift Kit-Chevy Allison 1000 2006-2008 6spd

SHIFT KIT CHEVY 2006-2008 1000

Auto Trans Shift Kit

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