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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1033 (Automatic Transmission - ALLISON - Introduction (2 Of 2)) >> Specifications >> Shift Speed (1-2 and 2-3 Shifts)

Shift Speed (1-2 and 2-3 Shifts)

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1-2 Shift Output Shaft RPM 2-3 Shift Output Shaft RPM
Engine % of TPS 12 25 50 100 12 25 50 100
Mode    
LMM 6.6L Normal 462 462 491 780 838 838 925 1503
LMM 6.6L Tow/Haul 607 607 607 809 1272 1272 1272 1618