GMC Logo2007 GMC Sierra 3500HD III (GMT900) Regular Cab Long Box: Rear view of a heavy duty pickup with dual rear wheels and tailgate

Rear view of a heavy duty pickup with dual rear wheels and tailgate

Rear perspective showing dual rear wheels, tailgate with Sierra SLT and GMC badges, large rectangular exhaust pipe, and long pickup bed.

View Dimensions of the 2007 GMC Sierra 3500HD III (GMT900) Regular Cab Long Box

View 28 images of the 2007 GMC Sierra 3500HD III (GMT900) Regular Cab Long Box

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Small red car