Sierra 2500 HD, 3500 HD / GMC
- 2007-2009 GMC Sierra 2500 HD
- Regular Cab: Standard two-door model
- Extended Cab: Four-door model with additional rear seating space
- Crew Cab: Full-size four-door model with larger rear seating area
- 2007-2009 GMC Sierra 3500 HD
- Regular Cab: Heavy-duty model with standard two-door configuration
- Extended Cab: Heavy-duty model with four doors and additional rear seating
- Crew Cab: Heavy-duty full-size four-door model with extensive rear seating
Production year(s): 2007, 2008, 2009
Serial numbers: 1GTHK23647F507382, 1GTHK23677F514477, 1GTHK23617F521345, 1GTHK23618F104735
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