Staff Answer
Aug 07, 2026 - 08:18 AM
Based on current fitment list on the Truck Hardware's site, it will fit the 2026 GMC 2500 / 3500 AT4. Here's the current fit list as of today:
20-26 GMC Sierra 2500HD AT4
20-26 GMC Sierra 2500HD Denali
20-26 GMC Sierra 2500HD Pro
20-26 GMC Sierra 2500HD SLE
20-26 GMC Sierra 2500HD SLT
20-26 GMC Sierra 3500HD AT4
20-26 GMC Sierra 3500HD Denali
20-26 GMC Sierra 3500HD Pro
20-26 GMC Sierra 3500HD SLE
20-26 GMC Sierra 3500HD SLT
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