Sierra 1500 2WD V6-4.3L VIN X (2004)
6. Remove the camshaft sprocket and the camshaft timing chain.
7. Using J 5825-A and an open end wrench, remove the crankshaft sprocket.
6. Remove the camshaft sprocket and the camshaft timing chain.
7. Using J 5825-A and an open end wrench, remove the crankshaft sprocket.