The 2013 GMC Trucks Sierra 3500 HD sits in the heavy-duty end of GMC’s pickup lineup, built for serious towing, hauling, and work-truck duty while still offering trim differences that range from WT utility to Denali comfort. Tire selection matters here because this truck appears with three primary radial sizes: 265/60R20, 265/70R18, and 235/80R17. Those sizes are tied to specific wheel diameters and, in some cases, dual-rear-wheel configurations. The real decision is less about vintage-style construction and more about matching the truck’s exact sub-model and wheel setup, then choosing a tire that suits load demands, road use, and any changes made since it left stock form.
Which Tire Size Is Right for The 2013 GMC Trucks Sierra 3500 HD
The 2013 GMC Trucks Sierra 3500 HD uses three primary tire sizes, and the right one depends on the truck’s exact sub-model and wheel diameter. The first step is confirming whether the truck has 20-inch, 18-inch, or 17-inch wheels, then matching that to the correct trim or DRW configuration. Once the correct size is identified, the decision shifts to construction details, load suitability, and the tire style available in that fitment.
265/60R20 is a metric radial size where 265 is the section width in millimeters, 60 is the aspect ratio, R identifies radial construction, and 20 is the rim diameter in inches. On the 2013 GMC Trucks Sierra 3500 HD, this size is part of the fitment picture for certain Denali configurations using a 20-inch wheel. Its shorter profile relative to the other primary sizes gives it a more wheel-filling, late-model heavy-duty truck look. The key is confirming that the truck actually carries the 20-inch wheel setup before choosing within this size.
265/70R18 is a metric radial size with a 265-millimeter section width, a 70-series aspect ratio, radial construction, and an 18-inch rim diameter. This size appears across several 2013 GMC Trucks Sierra 3500 HD sub-models, making it a common fitment for single-rear-wheel trucks equipped with 18-inch wheels. Its dimensions place it very close in overall height to 265/60R20 while using a different wheel diameter. That makes wheel confirmation especially important on trucks that may have had trim changes, aftermarket wheels, or later owner modifications.
Fit(s): Denali (DRW), SLE (DRW), SLT (DRW), and WT (DRW)
Construction: Radial|Rim: 17 in
235/80R17 is a metric radial size that uses a narrower 235-millimeter section width, an 80-series profile, radial construction, and a 17-inch rim. On the 2013 GMC Trucks Sierra 3500 HD, this size is tied to dual-rear-wheel configurations rather than the wider single-rear-wheel setups. The available product coverage here includes a BFGoodrich All-Terrain T/A KO2 with an RBL sidewall, giving buyers a more specific product character to consider. This size should be evaluated with special attention to wheel type, rear-wheel configuration, and load needs.
Sub-model fitment on the 2013 GMC Trucks Sierra 3500 HD is not one-size-fits-all. Tire choice depends on whether the truck is a Denali, SLE, SLT, or WT, and whether it is configured as a DRW model or equipped with a different wheel diameter.
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2013 GMC Trucks Sierra 3500 HD Denali
The 2013 GMC Trucks Sierra 3500 HD Denali appears with two radial tire fitments, which means wheel diameter needs to be confirmed before a tire is selected. Once that is settled, the choice becomes a matter of matching the existing 20-inch or 18-inch setup and checking for any wheel changes made over time.
The 2013 GMC Trucks Sierra 3500 HD Denali (DRW) uses the narrower radial size associated with the dual-rear-wheel setup. Tire selection here should stay focused on the DRW configuration and the correct 17-inch wheel arrangement rather than assuming interchangeability with single-rear-wheel Denali sizes.
The 2013 GMC Trucks Sierra 3500 HD SLE uses a single radial fitment tied to its 18-inch wheel setup. That keeps size selection straightforward, but it is still worth checking the actual wheels on the truck if it has been upgraded, swapped, or altered for towing or appearance.
The 2013 GMC Trucks Sierra 3500 HD SLE (DRW) uses the 17-inch radial fitment associated with dual-rear-wheel trucks. Buyers should make sure the wheel and rear axle setup remain true to the DRW configuration before comparing tire options in this size.
The 2013 GMC Trucks Sierra 3500 HD SLT uses the 18-inch radial tire size rather than the Denali’s optional larger-wheel fitment. That makes selection simpler, with the main task being confirmation that the truck still wears the expected wheel diameter and has not been converted to another setup.
The 2013 GMC Trucks Sierra 3500 HD SLT (DRW) uses the radial size tied to the 17-inch dual-rear-wheel arrangement. Choosing tires for this sub-model means focusing on DRW-specific fitment needs and making sure the wheels and load expectations match the truck’s actual use.
The 2013 GMC Trucks Sierra 3500 HD WT uses the 18-inch radial tire size shared with several single-rear-wheel trims. Tire shopping is more straightforward here, though wheel swaps on work trucks are common enough that checking actual rim diameter remains worthwhile.
The 2013 GMC Trucks Sierra 3500 HD WT (DRW) uses the 17-inch radial size associated with the dual-rear-wheel version of the truck. Selection should stay centered on the DRW wheel package and the truck’s working load requirements rather than on appearance-driven tire substitutions.
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 2013 GMC Trucks Sierra 3500 HD Tires for Sale
Current product coverage for the 2013 GMC Trucks Sierra 3500 HD centers on 235/80R17, including a BFGoodrich All-Terrain T/A KO2 radial with an RBL sidewall. In the product grid, compare construction, tire series, rim-width compatibility, load rating, and the overall character that suits a working DRW truck.
These FAQs focus on the tire sizes used on the 2013 GMC Trucks Sierra 3500 HD, how those sizes vary by sub-model and wheel diameter, and what to check when comparing tire options for work, towing, and regular road use.
Tire Size & Fitment
What tire size fits a 2013 GMC Trucks Sierra 3500 HD?
The 2013 GMC Trucks Sierra 3500 HD uses three primary radial tire sizes: 265/60R20, 265/70R18, and 235/80R17. The correct one depends on the truck’s exact sub-model, wheel diameter, and whether it is a single-rear-wheel or dual-rear-wheel configuration.
Choosing the right size starts with confirming the actual wheels on the truck. Denali models can appear with either 20-inch or 18-inch fitment, while several SLE, SLT, and WT trucks use 18-inch wheels, and DRW models use 17-inch fitment. Trucks that have had wheel swaps, lift kits, or trim changes should be checked carefully before replacing tires.
What size rim does a 2013 GMC Trucks Sierra 3500 HD use?
The 2013 GMC Trucks Sierra 3500 HD appears with 17-inch, 18-inch, and 20-inch rims, depending on the exact sub-model and tire size. The three primary combinations are 235/80R17 on a 17-inch rim, 265/70R18 on an 18-inch rim, and 265/60R20 on a 20-inch rim.
Rim diameter is the first thing to confirm before buying replacement tires because these sizes are not interchangeable across different wheel diameters. A quick sidewall check usually reveals the mounted size, but it is also smart to verify the wheel setup visually, especially on trucks that may have had aftermarket wheels, trim upgrades, or dual-rear-wheel conversions.
Do all 2013 GMC Trucks Sierra 3500 HD sub-models use the same tire size?
No, the 2013 GMC Trucks Sierra 3500 HD does not use one tire size across every sub-model. Denali can use either 265/60R20 or 265/70R18, several single-rear-wheel SLE, SLT, and WT trucks use 265/70R18, and DRW versions use 235/80R17.
That variation means the trim badge alone is not always enough to choose tires, especially on a Denali. The safest approach is to confirm both the sub-model and the wheel diameter already on the truck. On DRW trucks, rear-wheel configuration matters just as much as trim level because the tire size changes with the dual-rear-wheel setup.
Choosing the Right Tire
What should I consider when choosing a 235/80R17 tire for a 2013 GMC Trucks Sierra 3500 HD?
For a 2013 GMC Trucks Sierra 3500 HD using 235/80R17, start with the truck’s DRW configuration, the 17-inch wheel, and the tire’s load-related specifications. The available product in this size is a BFGoodrich All-Terrain T/A KO2 radial with a 3,085-pound maximum load capacity at 80 psi and a 6.0 to 7.5-inch rim-width range.
That makes this size less about appearance experimentation and more about matching the truck’s working role. Compare the wheel width on the truck, check whether the truck is used mainly for towing, hauling, or mixed road use, and inspect front and rear clearance. On a heavy-duty DRW pickup, load suitability and wheel compatibility matter more than style alone.
What brands offer tires for the 2013 GMC Trucks Sierra 3500 HD?
Available product coverage for the 2013 GMC Trucks Sierra 3500 HD includes BFGoodrich in 235/80R17. That product is the All-Terrain T/A KO2 radial, which gives buyers a recognizable all-terrain option in the DRW-associated 17-inch fitment.
Brand choice only matters after the correct size and wheel setup have been confirmed. A Denali on 20-inch wheels, a single-rear-wheel SLE on 18s, and a WT (DRW) on 17s are solving different fitment problems. Once the size is right, compare the tire’s series, load specification, sidewall style, and intended use instead of choosing by brand name alone.
What sidewall styles are available for 2013 GMC Trucks Sierra 3500 HD tires?
The currently represented sidewall style for the 2013 GMC Trucks Sierra 3500 HD product selection is RBL in 235/80R17. That sidewall treatment appears on the BFGoodrich All-Terrain T/A KO2 option tied to the truck’s 17-inch DRW fitment.
Sidewall appearance should be treated as a secondary choice behind size, wheel diameter, and load suitability. On a heavy-duty truck, especially one used for work or towing, the practical fitment details come first. After those are confirmed, sidewall style can help shape the truck’s overall look without changing the need to stay within the proper tire size and wheel range.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2013 GMC Trucks Sierra 3500 HD?
Yes, modifications can change tire fitment on a 2013 GMC Trucks Sierra 3500 HD even when the original size seems straightforward. Aftermarket wheels, suspension lifts, leveling kits, lowering changes, and DRW-related wheel changes can all affect how 265/60R20, 265/70R18, or 235/80R17 tires sit on the truck.
The most important checks are wheel diameter, wheel width, and clearance at full steering lock and full suspension movement. A truck that has been altered for towing stance, appearance, or off-road use may not match stock assumptions anymore. Looking at the actual wheel and tire setup on the vehicle is the best starting point before selecting replacements.
What should I inspect before driving a 2013 GMC Trucks Sierra 3500 HD on new tires?
Before putting a 2013 GMC Trucks Sierra 3500 HD back into regular use on new tires, inspect the wheels, valve stems, lug hardware, and overall tire pressure. It is also smart to make sure the new tires match the truck’s actual wheel diameter and intended configuration, especially on DRW models.
A short road test should include checking for rubbing, uneven steering feel, vibration, and any sign of clearance problems under turning or load. Heavy-duty trucks deserve extra attention to inflation, visible sidewall condition, and any unusual wear pattern that could point to alignment or suspension issues. Catching those details early helps protect both the tires and the truck.
How often should tires on a 2013 GMC Trucks Sierra 3500 HD be inspected?
Tires on a 2013 GMC Trucks Sierra 3500 HD should be inspected regularly, with a quick visual check before routine driving and a closer inspection before towing, hauling, or longer highway use. Heavy-duty pickups place more demand on tires than light-duty trucks, so condition matters even when tread still looks usable.
Look for uneven wear, cuts, bulges, cracking, punctures, and slow air loss, and verify inflation with the truck cold. Trucks that sit for stretches between jobs should also be checked for age-related issues and flat spotting. Consistent inspection is especially important on DRW setups, where a problem with one tire can affect how the full rear wheel package carries load.
