2025 Gmc Sierra Hd Specs. As we can see from these tables, the 2025 gmc sierra hd model with the highest towing capacity rating is the 3500 hd regular cab / long bed drw (dual rear. Vehicle details stay in the know.
Select a 2025 gmc sierra at4 and at4x hd to view feature and capability specs on the official site. The 2025 gmc sierra hd work truck pulls your world with turbocharged power and an impressive lineup of trims.