Hello. A little warning here with the 3.9 engine.....I have found several that the "timing hash mark" on the front pulley to be "slipped" out of the correct timing position...........I now always remove the center crank bolt to see the crank key way.........I bring the key way to a 12 o clock position and then compare the hash mark on the pulley to the TDC mark on the cover............

regards,
crossbones

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