The top 5 interior brands enthusiasts actually trust for the GMT900 — LMM Duramax (2008-2010) GMC Sierra 2500HD/3500HD (Duramax) — ranked by community reputation and fitment reliability.
2008-2010 GMC Sierra 2500HD/3500HD (Duramax) · Interior
InstantFetched 3d ago · Refreshes in 57d
Lokar
Premium custom fabrication, exacting fitment for GMT900 platform.
Sold direct through Lokar's manufacturing facility and authorized dealers.
Dash Designs
Dash covers and protection, proven durability on heavy-duty trucks.
Widely available through major performance and truck retailers.
Husky Liners
Floor mats and protection products, trusted fitment for Duramax trucks.
Widely available through major automotive and performance retailers.
WeatherTech
Precision-fitted floor and cargo protection, strong truck owner reputation.
Sold direct through WeatherTech's website and authorized retailers.
Katzkin
Leather upholstery upgrades, custom work for truck interiors.
Installed through authorized Katzkin dealers nationwide.
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