Looking at pictures of the Overland Expo’s GMC Sierra 2500 HD AT4X Ultimate Build, it looks big, but it doesn’t look as big as it is when you’re in front of it. Before all the upgrades (which I’ll get ...

Shop 2025 GMC Sierra 2500 SLT vehicles in Overland, MO for sale at Cars.com. Research, compare, and save listings, or contact sellers directly from 54 2025 Sierra 2500 models in Overland, MO.

Compared to the 2024 model, GMC’s 2025 Sierra 2500 HD receives a variety of relatively small changes and updates consistent with a model year changeover. Model Cadence The 2025 Sierra HD ...

The 2025 GMC Sierra 2500 HD receives a variety of small changes for the sixth model year of the heavy-duty truck’s fourth generation. These changes follow the 2020 Sierra 2500 HD, which received ...

Photo: CarPro. If you like big trucks, or you tow a heavy load, I have one for you this week you'll love: The 2025 GMC Sierra 2500 Denali Ultimate, one of the biggest, baddest trucks GMC offers.

2024 GMC Sierra 2500 4WD Crew Cab AT4X, powered by a Duramax 6.6L Turbo-Diesel and an Allison 10-Speed Automatic transmission. BASE PRICE: $81,800.00.

The Sierra HD goes on sale in early 2023, with the AT4X following later in the year. It competes with the Chevrolet Silverado 2500HD/3500HD, Ford F-250/F-350, and the Ram 2500/3500.

Get the latest in-depth reviews, ratings, pricing and more for the 2025 GMC Sierra 2500HD from Consumer Reports.

The GMC Sierra EV is leveling up! Discover how the addition of new trims like the Elevation and AT4, plus more battery options, makes this electric truck significantly better for 2026.

Photo: CarPro. If you like big trucks, or you tow a heavy load, I have one for you this week you'll love: The 2025 GMC Sierra 2500 Denali Ultimate, one of the biggest, baddest trucks GMC offers.