2024 Gmc Sierra 2024 Hd At4x. 2024 gmc sierra hd at4x & at4x aev edition. Gm just pulled the sheets on the refreshed 2024 gmc sierra hd, confirming that the new gmc sierra hd at4x will arrive later next year.
The 2024 sierra hd at4x is rated to tow up to 18,500 pounds. That’s 172 pounds heavier than the colorado zr2 that faced off against the new toyota tacoma in a.