GM Service Manual Online
For 1990-2009 cars only

    Object Number: 736677  Size: SH
  1. Rotate the crankshaft until the timing marks are aligned.

  2. Object Number: 736678  Size: SH
  3. Remove the bolt and washer from the idler gear.
  4. Remove the idler gear from the hub.
  5. Remove the mounting bolts from the hub.
  6. Remove the hub from the cylinder block.