The 2010 GMC Trucks Sierra 2500 HD sits in the heavy-duty pickup world where towing, hauling, and long-wheelbase stability matter just as much as day-to-day road manners. This generation of Sierra 2500 HD appeals to owners who still use their trucks as intended, whether the goal is work duty, ranch use, towing, or keeping a clean, capable GM heavy-duty truck on the road. Tire fitment centers on two radial sizes, 245/75R16 and 265/70R17, so the first step is confirming which wheel package and sub-model setup the truck has. From there, the choice is less about vintage construction and more about load capacity, wheel compatibility, and matching the tire to the truck's real use.
Which Tire Size Is Right for The 2010 GMC Trucks Sierra 2500 HD
The 2010 GMC Trucks Sierra 2500 HD uses two primary tire sizes, and the right one depends on the truck's sub-model and wheel diameter. Both sizes are radial, but they do not share the same rim size, so confirming whether the truck is on a 16-inch or 17-inch wheel is the first step. After that, the decision comes down to the correct fitment for the truck and selecting the load and specification level that matches how it is used.
245/75R16 is a metric radial size with a 245-millimeter section width, a 75-series profile, radial construction, and a 16-inch rim diameter. On the 2010 GMC Trucks Sierra 2500 HD, this size suits trucks equipped with the 16-inch wheel setup and keeps the fitment in a straightforward modern light-truck format. Available choices center on the BFGoodrich All-Terrain T/A KO2 with raised white letter styling and a radial all-terrain character. This size is the one to evaluate when the truck is a regular-cab or work-truck configuration, or anytime the vehicle is still on its original-style 16-inch wheel package.
265/70R17 is a metric radial size that uses a 265-millimeter section width, a 70-series profile, and a 17-inch rim diameter. For the 2010 GMC Trucks Sierra 2500 HD, this size applies to trucks equipped with the larger 17-inch wheel setup and appears on several SLE and SLT configurations. The available BFGoodrich All-Terrain T/A KO2 options share raised white letter sidewalls and the same tire series, but they differ in load capacity and weight. This is the size to consider when the truck has 17-inch wheels and the owner wants to match the tire choice to towing, hauling, or general heavy-duty road use.
Sub-model fitment is not completely uniform on the 2010 GMC Trucks Sierra 2500 HD. Some configurations use one tire size only, while others can be equipped with either 245/75R16 or 265/70R17, so identifying the exact sub-model and wheel setup matters before selecting a tire.
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2010 GMC Trucks Sierra 2500 HD SLE Crew Cab
The 2010 GMC Trucks Sierra 2500 HD SLE Crew Cab can use either 245/75R16 or 265/70R17 radial tires, depending on the wheel package on the truck. Tire selection starts with confirming whether it has 16-inch or 17-inch wheels, then matching the tire's load specification to how the truck is actually driven and worked.
The 2010 GMC Trucks Sierra 2500 HD SLE Ext. Cab also spans both primary radial sizes, so there is not a single universal tire choice for every truck in this sub-model. The practical step is checking the mounted wheel diameter first, then choosing the correct size and product specification for road use, hauling, or towing demands.
The 2010 GMC Trucks Sierra 2500 HD SLE Reg. Cab uses the 245/75R16 radial size. That keeps tire selection relatively simple, with the real focus shifting to 16-inch wheel compatibility, load needs, and whether the truck's use leans more toward regular-duty road driving or heavier work.
The 2010 GMC Trucks Sierra 2500 HD SLE w/Z71 Pkg. can be equipped with either 245/75R16 or 265/70R17 radial tires. Before choosing a replacement, confirm the current wheel diameter and overall setup, then compare the available tire specification with the truck's intended off-pavement, towing, or general heavy-duty use.
The 2010 GMC Trucks Sierra 2500 HD SLT Crew Cab is another configuration that may use either of the two primary radial sizes. That means tire selection is tied to the truck's actual wheel package rather than the trim name alone, especially when 16-inch and 17-inch wheel setups are both possible.
The 2010 GMC Trucks Sierra 2500 HD SLT Ext. Cab uses the 265/70R17 radial size. With fitment centered on a 17-inch wheel, the key choice becomes selecting the right load-capacity version of the available tire rather than sorting through multiple primary sizes.
The 2010 GMC Trucks Sierra 2500 HD SLT w/Z71 Pkg. may use either 245/75R16 or 265/70R17 radial tires. Buyers should confirm the wheel diameter on the truck itself and then choose a tire that matches both the fitment and the heavier-duty expectations that often come with this type of Sierra 2500 HD use.
The 2010 GMC Trucks Sierra 2500 HD WT Crew Cab uses the 245/75R16 radial size. That makes the fitment path more direct, with attention best spent on 16-inch wheel compatibility, tire condition, and selecting a specification that supports the truck's work-oriented role.
The 2010 GMC Trucks Sierra 2500 HD WT Ext. Cab uses 245/75R16 radial tires. For this sub-model, the main considerations are staying with the correct 16-inch sizing and choosing a tire that suits the truck's actual load demands rather than assuming every 245/75R16 is built to the same standard.
The 2010 GMC Trucks Sierra 2500 HD WT Reg. Cab uses the 245/75R16 radial size. Replacement selection is straightforward once the 16-inch wheel is confirmed, and the useful comparison points become tire specification, load capability, and whether the truck still retains its original wheel setup.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2010 GMC Trucks Sierra 2500 HD Tires for Sale
Available choices for the 2010 GMC Trucks Sierra 2500 HD center on BFGoodrich All-Terrain T/A KO2 radials in 245/75R16 and 265/70R17. The main product differences are wheel-size fitment, raised white letter sidewalls, and the load-capacity and weight variations within the 17-inch size.
Owners of a 2010 GMC Trucks Sierra 2500 HD usually need to confirm the right tire size, wheel diameter, and sub-model fitment before comparing load specifications and product details. The questions below focus on size selection, rim fitment, tire choice, and practical checks before road use.
Tire Size & Fitment
What tire size fits a 2010 GMC Trucks Sierra 2500 HD?
The 2010 GMC Trucks Sierra 2500 HD uses two primary tire sizes: 245/75R16 and 265/70R17. Both are radial sizes, but they apply to different wheel setups and, in some cases, different sub-model configurations across the Sierra 2500 HD range.
The right choice starts with confirming the truck's actual wheel diameter and exact sub-model. Some Sierra 2500 HD versions use only one size, while others may be equipped with either size, so checking the current wheel and tire combination on the truck is more reliable than choosing by model name alone.
What size rim does a 2010 GMC Trucks Sierra 2500 HD use?
A 2010 GMC Trucks Sierra 2500 HD can use either a 16-inch or 17-inch rim, depending on the tire size and vehicle configuration. The 245/75R16 size matches a 16-inch rim, while the 265/70R17 size matches a 17-inch rim.
Wheel diameter should be verified before ordering tires because these two sizes are not interchangeable across the same rim. It also helps to check wheel width, especially on a truck that may have had aftermarket wheels installed, since the available tires have specific rim-width ranges that should match the wheel in use.
Why does the 2010 GMC Trucks Sierra 2500 HD have more than one tire size?
More than one tire size appears on the 2010 GMC Trucks Sierra 2500 HD because fitment varies across the model range and wheel packages. Some sub-models use only 245/75R16, some use only 265/70R17, and others can be equipped with either size depending on the setup.
That variation means tire selection is tied to the truck's exact configuration rather than the Sierra 2500 HD name alone. The practical approach is to identify the sub-model, confirm the wheel diameter on the truck, and then choose the correct tire size before comparing load capacity, sidewall style, or other product details.
Choosing the Right Tire
What should I consider when choosing a 245/75R16 tire for a 2010 GMC Trucks Sierra 2500 HD?
Start with the basics: the truck must actually use the 245/75R16 size and have a 16-inch wheel. For this Sierra 2500 HD fitment, the available option is a radial BFGoodrich All-Terrain T/A KO2 with raised white letter styling, a 6.5- to 8.0-inch rim-width range, and a maximum load capacity of 3,042 lbs at 80 psi.
That makes wheel compatibility and intended truck use the main decision points. A Sierra 2500 HD used for heavier work, towing, or loaded driving should have its wheel setup and tire specification checked carefully, especially if the truck has changed wheels or no longer carries the same type of load it did previously.
What brands offer tires for the 2010 GMC Trucks Sierra 2500 HD?
The available tires for the 2010 GMC Trucks Sierra 2500 HD come from BFGoodrich in the sizes covered here. Both the 245/75R16 and 265/70R17 fitments are represented by the All-Terrain T/A KO2 series, giving the page a focused product selection rather than a broad multi-brand assortment.
That means the comparison is less about choosing among several brands and more about selecting the correct size, wheel fitment, and load specification. In the 17-inch size especially, it is worth comparing the available load-capacity versions so the tire matches the truck's real-duty use instead of relying on size alone.
What sidewall styles are available for 2010 GMC Trucks Sierra 2500 HD tires?
The available products for the 2010 GMC Trucks Sierra 2500 HD use RWL sidewalls, which means raised white letter styling. That sidewall treatment appears on both the 245/75R16 and 265/70R17 BFGoodrich All-Terrain T/A KO2 options offered for this truck.
Sidewall style matters mostly as an appearance choice once the correct size and wheel fitment are confirmed. On a heavy-duty pickup like the Sierra 2500 HD, the more important checks still involve size, rim compatibility, and load specification, but raised white letters can help preserve a more traditional truck tire look.
Restoration & Appearance
Which tire should I choose for a period-style 2010 GMC Trucks Sierra 2500 HD?
For a period-style 2010 GMC Trucks Sierra 2500 HD, the first priority is staying with the correct primary size for the truck's wheel setup: 245/75R16 on a 16-inch rim or 265/70R17 on a 17-inch rim. The available BFGoodrich All-Terrain T/A KO2 options suit the truck's heavy-duty character and maintain a contemporary-for-the-era all-terrain presentation.
Appearance should be balanced against how the truck is actually used. A cleaner, preserved Sierra may lean toward maintaining its original wheel diameter and overall look, while a truck that still tows or hauls regularly should also have its load needs, wheel width, and tire specification checked before final selection.
Does correct tire fitment matter for a 2010 GMC Trucks Sierra 2500 HD restoration?
Correct tire fitment matters because the 2010 GMC Trucks Sierra 2500 HD was built around specific wheel diameters and tire sizes. Using 245/75R16 or 265/70R17 as appropriate helps preserve the truck's intended stance, wheel relationship, and overall heavy-duty look without introducing an obviously mismatched setup.
Exact appearance goals can vary, especially on a truck that has seen years of work or cosmetic updates. A restoration-minded owner should confirm the original wheel package on the truck and use that as the starting point, then compare sidewall treatment and tire specification to match the desired look and road use.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2010 GMC Trucks Sierra 2500 HD?
Yes, modifications can affect tire fitment on a 2010 GMC Trucks Sierra 2500 HD even when the tire size looks correct on paper. Aftermarket wheels, changes in wheel width, suspension lifts or lowering, and body or steering alterations can all influence how a 245/75R16 or 265/70R17 tire sits and clears.
A truck with non-original wheels should have both diameter and width checked before replacement tires are chosen. Clearance at full steering lock, under load, and through suspension travel is also worth inspecting, especially on a heavy-duty pickup that may see towing, off-pavement use, or uneven road conditions.
What should I inspect before driving a 2010 GMC Trucks Sierra 2500 HD on new tires?
Before putting a 2010 GMC Trucks Sierra 2500 HD into regular road use on new tires, inspect the wheels, valve stems, lug hardware, and overall condition of the suspension and steering components. Tire pressure should be set correctly for the tire and the truck's intended use, and the mounted size should match the actual wheel diameter.
A short initial check after installation is also useful. Look for any rubbing during turns, signs of uneven seating, or air loss, and pay attention to how the truck tracks under braking and normal driving. On a three-quarter-ton pickup, those basic checks matter even more when the truck will haul or tow.
How often should tires on a 2010 GMC Trucks Sierra 2500 HD be inspected?
Tires on a 2010 GMC Trucks Sierra 2500 HD should be inspected regularly, especially before towing, hauling, or taking the truck on a longer drive. Routine checks should include pressure, tread wear, cuts, bulges, sidewall damage, and any signs of irregular wear that could point to alignment or suspension issues.
A heavy-duty truck places real demands on its tires, so waiting for obvious problems is not a good habit. Trucks that sit for long periods still deserve inspection because age, air loss, and weather exposure can affect tire condition even when mileage stays low, particularly on work trucks used intermittently.
