New 2026 GMC Sierra 3500 Double Cab Service Truck
Chassis Details
Vehicle Options
- Preferred Equipment Group 1SA: Remote Keyless Entry; 2-Speed Electronic Shift Transfer Case; Sierra HD Pro Safety; Wireless Phone Projection; Solar Absorbing Tinted Glass; Push Button Start; Chrome Grille with Flat Black Grille Insert Bars; 2 Charge/data USB Ports
- SEO: Back-Up Alarm Calibration
- Forward collision mitigation with pedestrian impact prevention
- Pedestrian impact prevention
- Mobile hotspot internet access
- Automatic Emergency Braking predictive brake assist system
- Cruise control with steering wheel mounted controls
- Primary monitor touchscreen
- Lane departure warning
- Part-time 4WD
- Duramax 6.6L V-8 diesel direct injection
- intercooled turbo
- diesel
- engine with 470HP
- Duramax 6.6L V-8
- Teen Driver restricted driving mode/alerts
- Keyfob window control
- Push-button
- Wireless audio streaming
- Following distance alert
- Smart key with push button start
- Auto high-beam headlights
- Immobilizer
- OnStar Services capable vehicle integrated emergency SOS system
- Handsfree wireless device connectivity
- Smart device wireless mirroring
- Trailer brake controller
- Trailer sway control
- GMC Infotainment System external memory control
- Internet radio capability
- Electronic stability control system with anti-roll
- Hill Hold Assist
- Rear seat check warning
- LED daytime running lights
- Manual rear child safety door locks
- MyGMC Mobile App mobile app access
- Gauge cluster display size: 3.50
- Manual tilting steering wheel
- Wheel hub covers
- Manual extendable trailer mirrors
- 18 x 8-inch front and rear silver steel wheels
- LT275/70SR18 AT BSW front and rear tires
- Vinyl front seat upholstery
- 6 airbags
- Driver front impact airbag
- Seat mounted side impact driver airbag
- Curtain first and second-row overhead airbags
- Passenger front impact airbag
- Seat mounted side impact front passenger airbag
- Airbag occupancy sensor
- Auto-locking doors
- Intercooled turbo
- Allison 10-speed automatic
- Selectable mode transmission
- Vinyl rear seat upholstery
- View All
Body Details
Classic II Steel Features
There are many service bodies on the market, but there’s only one Classic II™. The Classic II™ steel service body, available for both single rear wheel and dual wheel chassis, is built with premium A60 coating-weight steel construction and our exclusive Triple Protection E-coat primer and powder coat finish to resist corrosion better than any other truck body on the market.
In addition, the Classic II™ offers features not found on any other service truck body. Our pressed diamond plate floor and inner tailgate surface provides superior strength and durability. Our patented hidden hinge system is fully adjustable and theft-resistant. Our exclusive Dual-Pro® seal system offers expanded door clearances and superior weather protection.
And that’s just the beginning. Add our industry-leading 6-year limited warranty and it’s easy to see why there’s No Body Better than the Classic II™.