2024 GMC Sierra 2500 HD Crew Cab Pro 6.6L Gas Serviced & Ready to Go This 2024 GMC Sierra 2500 HD Crew Cab Pro is a clean-title, work-ready heavy-duty truck built to handle anything you throw at it. Powered by the 6.6-liter V8 paired with the 10-speed Allison automatic transmission and 4WD, it delivers the strength, reliability, and capability buyers expect from a Sierra HD.With 105k miles, this truck has been fully serviced, runs strong, and is ready to go immediately. The Crew Cab and 6.5-ft bed give you the perfect mix of passenger space and hauling ability.Key Features6.6L V8 engine10-speed Allison automatic4WDCrew Cab 4 full doors401 horsepowerClean title105,324 milesServiced & road-ready