Blogs at TrailBuilt Off-Road

Start Your Build Here! Table of Contents Introduction Stock Fitment Best Builds Shop for Your Vehicle 1999-2007 GMC Sierra 2500 Wheel, Tire & Suspension Fitment Guide The 1999-2007 GMC Sierra 2500 made a statement in the world of heavy-duty trucks, offering an impressive blend of power, style, and versatility. Built to handle the toughest tasks, it featured options like the 6.6-liter Duramax diesel engine, which delivered serious towing and hauling capabilities. Whether you needed a workhorse or a truck with a bit more flair, the Sierra 2500 had you covered with various cab and bed configurations. Inside, it balanced durability with comfort, providing a solid driving experience and luxury features in higher trims. Known for its reliability and strong performance, this truck became a favorite for those looking for a tough yet refined pickup. If you own a second gen GMC Sierra 2500 and you’ve been thinking about turning it into your newest off-roader, but don’t know where to begin, then you’ve landed in the right place. We’ve put together this comprehensive guide to help you figure out what kind of setup you need in order to properly handle the different trails and terrain you’ve been eyeing up. We’ll also include some examples from our gallery of what other Sierra 2500 owners have equipped in order to help give you an idea of what yours could look like when its finished. So now that we know why we’re all here, let’s stop wasting time and get started! Shop Today's Best Deals Stock Wheel & Tire Fitment for the Second Generation GMC Sierra 2500 When we’re talking about stock wheel and tire sizes for the second generation GMC Sierra 2500, the only option that the truck came off the production line with is a 245/75 tire combined with a 16x6.5 wheel size. The bolt pattern that came on the Sierra 2500 is a 8x6.5 pattern, which is important to remember when you’re looking for wheels. You’ll have to make sure that any wheels you’re looking to equip your Sierra with fit that bolt pattern, otherwise you’ll need to use an adapter in order to get the correct fit. So, when looking at tires and wheels for your Sierra 2500 off-roader, you’re going to want the combination of bigger tires and smaller wheels in order to take full advantage of your build’s full potential. This combination will give your truck the ground clearance and durability to overcome uneven terrain while protecting the truck’s critical components. Think tire sizes between 33-40 inches in height and wheels 17-20 inches in diameter. Now take that and combine it with a suspension lift that’s 3 inches or higher, and you’ll have the proper height to navigate any kind of terrain or trail with ease. Another thing you’ll want to keep in mind is your suspension’s geometry. You’ll want to make sure that your suspension is properly aligned before taking your truck out. If it’s not aligned, you can cause massive damage to your rig’s suspension. Favorite Second Generation GMC Sierra 2500 Builds From Our Gallery Example 1: 2001 GMC Sierra 2500 HD WHEELS:XD XD797 17x9 -12 TIRES:305/70 Nitto Terra Grappler G2 SUSPENSION:3” Suspension Lift Example 2: 2003 GMC Sierra 2500 HD WHEELS:Moto Metal MO957 17x9 -12 TIRES:35x12.5 Atturo Trail Blade XT SUSPENSION:Pro Comp Suspension Lift 6” Example 3: 2004 GMC Sierra 2500 HD WHEELS:KX KX01 17x9 0 TIRES:33x12.5 BFGoodrich Mud-Terrain T/A KM3 SUSPENSION:Motofab Leveling Kit Example 4: 2004 GMC Sierra 2500 HD WHEELS:Anthem Off-Road Intimidator 17x9 0 TIRES:33x12.5 Venom Power Terra Hunter X/T SUSPENSION:OEM Stock Example 5: 2005 GMC Sierra 2500 HD WHEELS:Cali Offroad Distorted 20x12 -44 TIRES:38x15.5 Toyo Open Country M/T SUSPENSION:Cognito Suspension Lift 12” Check Out All 2nd Gen GMC Sierra 2500 Builds In Our Gallery! Find the Perfect Wheels, Tires, Suspension & More For Your Second Generation GMC Sierra 2500 at TrailBuilt Off-Road! We’ve gone over all the important information in order to get your GMC Sierra 2500 turned into the off-road machine of your dreams, so now you’ll want to get started on your custom build. Head over to the store at TrailBuilt Off-Road in order to pick out your favorite setup and you’ll be ready for the trails in no time. Remember that we offer free shipping and quick delivery for your convenience, and some amazing financing options to make your purchase easy and affordable. Plus, if you decide to bundle any set of in-stock wheels and tires we also include free mounting and balancing as well. That’s an incredible deal you won’t want to pass up. Your custom Sierra 2500 rig is this close to hitting the backroads and trails, there’s only a few steps to take in order to get it there! Once your new GMC Sierra 2500 rig is finished and you’ve taken it out on the trails, please feel free to add it onto our gallery so we can help inspire other enthusiasts with their very own builds as well. See you out on the trails!

Blogs at TrailBuilt Off-Road

What Wheels and Tires Best Fit a Fourth Gen GMC Sierra 2500?

July 21, 2025

What Wheels and Tires Best Fit a Third Generation GMC Sierra 2500?

June 2, 2025

What Wheels and Tires Best Fit a Second Generation GMC Sierra 2500?

May 6, 2025

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Blogs at TrailBuilt Off-Road

What Wheels and Tires Best Fit a Fourth Gen GMC Sierra 2500?

July 21, 2025

What Wheels and Tires Best Fit a Third Generation GMC Sierra 2500?

June 2, 2025

What Wheels and Tires Best Fit a Second Generation GMC Sierra 2500?

May 6, 2025