Automatic Transmission 4WD Fits 10-11 AVALANCHE 1500 776500
AVALANCHE 1500 10-11 AT; 4×4. Notes 4WD PROD DATE 2011-01-01. Fill transmission with manufacturer specified fluid. SIERRA DENALI 1500 11 AT; 4×4. SIERRA DENALI 10 AT; AWD. Useful Links. Warranties do not cover any labor costs.