Colorado 2WD L5-3.5L VIN 6 (2005)
6. Verify the correct timing chain and timing mark alignments:
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The left hand balance shaft sprocket timing mark (1) is at the 12:00 position
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The right hand balance shaft sprocket timing mark (2) is at the 2:30 position
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The crankshaft sprocket timing mark (33 is at the 4:30 position
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The 3 timing marks (1-3) on the sprockets line up with a dark link on the chain
7. Install the crankshaft rear oil seal housing.
