# @davesinclairbuickgmc on Instagram

- **Type:** Video
- **Original URL:** https://www.instagram.com/p/DVQuwsnlGN7
- **Gondola URL:** https://gondola.cc/posts/57876205-davesinclairbuickgmc-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/ff0ee03c64.jpg
- **Posted:** 2026-02-27T12:30:49.000+00:00
- **Account Owner:** Dave Sinclair Buick-GMC (@davesinclairbuickgmc) — https://gondola.cc/davesinclairbuickgmc

## Caption

Listen to the 6.6L Duramax growl... 🔊

There’s something about the 2026 GMC Sierra 2500 AT4X that just feels different in person. Especially when you're the one siting behind the wheel of a heavy-duty truck capable of climbing through rough terrain with 470 HP and 975 lb-ft of torque.

If you’re looking for a truck that balances the Multimatic DSSV dampers with a 18,500 lbs max towing capacity, this is the benchmark. The Obsidian Rush interior is the quietest cabin in the segment.

#GMCSierra #AT4X #DieselTrucks #2500HD #Duramax

## Stats

- **Views:** 297
- **Likes:** 36
- **Shares:** 0
- **Comments:** 0

## Tags

dieseltrucks, duramax, at4x, gmcsierra, 2500hd

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