The 2017 GMC Trucks Sierra 2500 HD sits squarely in the modern heavy-duty pickup world, where towing, payload, and daily road use all shape the tire decision. Buyers looking at this truck usually are not trying to decode a vintage sizing system, but they do need to sort out which wheel and trim setup the truck actually has. This Sierra 2500 HD uses radial tire fitments in 245/75R17, 265/70R18, or 265/60R20, depending on sub-model and wheel package. That makes the real choice one of correct size, rim diameter, and tire style rather than bias-ply versus radial conversion. A careful match matters even more if the truck has changed wheels or suspension since new.
Which Tire Size Is Right for The 2017 GMC Trucks Sierra 2500 HD
Three primary tire sizes apply to the 2017 GMC Trucks Sierra 2500 HD, and they are tied to different sub-model and wheel combinations. The first step is confirming the exact sub-model and, just as importantly, the truck's actual rim diameter, since this fitment spans 17-inch, 18-inch, and 20-inch wheels. Once that is settled, the decision becomes choosing the right radial tire within the correct size and intended use.
245/75R17 is a modern metric radial size in which 245 indicates nominal section width in millimeters, 75 is the aspect ratio, R designates radial construction, and 17 is the wheel diameter in inches. On the 2017 GMC Trucks Sierra 2500 HD, this size serves buyers using the truck's 17-inch wheel setup rather than the larger 18-inch or 20-inch combinations. Available product choice in this size includes a BFGoodrich All-Terrain T/A KO2 with raised white letter styling. This size is the one to evaluate when the truck is equipped with 17-inch wheels and a more utility-focused tire presentation is desired.
265/70R18 follows the same metric radial format, with a 265-millimeter nominal section width, a 70-series profile, radial construction, and an 18-inch rim diameter. For the 2017 GMC Trucks Sierra 2500 HD, this size appears across several sub-models, making it one of the key fitments to confirm before comparing tire options. Its role is distinct from the 17-inch and 20-inch setups because wheel diameter alone prevents casual substitution. This is the size to focus on when the truck is already on 18-inch wheels and the goal is staying with the proper diameter and profile family for that configuration.
265/60R20 is another metric radial size, using the same 265-millimeter nominal section width but a lower 60-series profile on a 20-inch wheel. On the 2017 GMC Trucks Sierra 2500 HD, this fitment belongs to trucks using the larger 20-inch wheel package rather than the 17-inch or 18-inch alternatives. That makes wheel confirmation essential, since the size cannot be chosen by width alone. Buyers looking at this fitment should evaluate it in the context of the truck's current wheel setup, appearance goals, and any changes that may have been made to ride height or wheel specification.
Sub-model fitment on the 2017 GMC Trucks Sierra 2500 HD is not one-size-fits-all, because the covered trims use different combinations of 17-inch, 18-inch, and 20-inch tire sizes. Checking the exact sub-model helps narrow the correct fitment, but the actual wheel diameter on the truck still needs to match before selecting a tire.
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2017 GMC Trucks Sierra 2500 HD Base
The 2017 GMC Trucks Sierra 2500 HD Base uses either a 245/75R17 radial or a 265/70R18 radial, depending on the wheel setup. That means tire selection starts with confirming whether the truck is on 17-inch or 18-inch rims before comparing tread style or intended road use.
The 2017 GMC Trucks Sierra 2500 HD Denali uses either 265/60R20 or 265/70R18 radial tires. Choosing correctly comes down to verifying whether the truck has the 20-inch or 18-inch wheel package, especially if wheels have ever been changed from the original setup.
The 2017 GMC Trucks Sierra 2500 HD SLE spans all three primary sizes: 245/75R17, 265/70R18, and 265/60R20. That wider spread makes wheel confirmation especially important, since selecting by trim name alone is not enough when the truck may have left the factory or later been equipped with different rims.
The 2017 GMC Trucks Sierra 2500 HD SLT uses either 265/60R20 or 265/70R18 radial tires. The main selection step is confirming which wheel diameter is actually on the truck, then comparing tire options that suit how the truck is driven and used.
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 2017 GMC Trucks Sierra 2500 HD Tires for Sale
Current product selection for the 2017 GMC Trucks Sierra 2500 HD centers on 245/75R17, with a BFGoodrich All-Terrain T/A KO2 option featuring radial construction, raised white letter sidewalls, and a 6.5- to 7.5-inch rim-width range.
Owners shopping tires for a 2017 GMC Trucks Sierra 2500 HD usually need to sort out size by sub-model and wheel diameter first. The questions below focus on fitment, rim choice, product selection, modifications, and road-use checks for this exact truck.
Tire Size & Fitment
What tire size fits a 2017 GMC Trucks Sierra 2500 HD?
The 2017 GMC Trucks Sierra 2500 HD uses one of three primary radial tire sizes: 245/75R17, 265/70R18, or 265/60R20. The correct size depends on the truck's sub-model and wheel setup, so there is not a single tire size that applies across every Sierra 2500 HD configuration.
The practical first step is checking the truck's actual wheel diameter before choosing a tire. A Base, SLE, SLT, or Denali may share some sizes, but wheel changes over time can blur the original trim-based fitment, so the tire should always match the rim diameter already on the truck.
What size rim does a 2017 GMC Trucks Sierra 2500 HD use?
A 2017 GMC Trucks Sierra 2500 HD uses 17-inch, 18-inch, or 20-inch rims, depending on the sub-model and tire size. The corresponding tire fitments are 245/75R17 for 17-inch rims, 265/70R18 for 18-inch rims, and 265/60R20 for 20-inch rims.
Rim diameter is the first fitment point to verify because a tire must match the wheel's bead-seat diameter exactly. Buyers should also confirm the current wheel setup on the truck rather than assuming it still has its original equipment, especially on used heavy-duty pickups that may have been upgraded or modified.
Do all 2017 GMC Trucks Sierra 2500 HD sub-models use the same tire size?
No. The 2017 GMC Trucks Sierra 2500 HD uses different tire sizes across its covered sub-models. Base models use 245/75R17 or 265/70R18, Denali uses 265/60R20 or 265/70R18, SLE can use all three sizes, and SLT uses 265/60R20 or 265/70R18.
That overlap means trim name alone does not always settle the tire decision. Two trucks with the same sub-model badge can still need different tires if their wheel packages differ, so matching the tire to both the sub-model and the actual rim diameter is the safest path before comparing products.
Choosing the Right Tire
What should I consider when choosing a 245/75R17 tire for a 2017 GMC Trucks Sierra 2500 HD?
Choosing a 245/75R17 tire for a 2017 GMC Trucks Sierra 2500 HD starts with confirming that the truck is actually on 17-inch wheels. In the available selection, this size is offered as a radial BFGoodrich All-Terrain T/A KO2 with raised white letter sidewalls, a 6.5- to 7.5-inch rim-width range, and a maximum load capacity of 3,195 lbs @ 80 psi.
Beyond size, compare the tire's intended use with how the truck is driven. Rim-width compatibility matters, and so does keeping load capacity aligned with the truck's real-world use. Buyers should also decide whether an all-terrain tread and raised white letter appearance suit the truck better than a more subdued presentation.
What sidewall styles are available for 2017 GMC Trucks Sierra 2500 HD tires?
Among the currently available products for the 2017 GMC Trucks Sierra 2500 HD, the visible sidewall style is RWL, or raised white letter. That style appears on the available 245/75R17 BFGoodrich All-Terrain T/A KO2 and gives the truck a more traditional performance-and-truck look than a plain black sidewall.
Sidewall style is mainly an appearance decision once the correct size and construction are settled. Buyers should still keep fitment first, since the right look does not matter if the tire does not match the truck's wheel diameter, load needs, and intended use on or off the pavement.
What brands offer tires for the 2017 GMC Trucks Sierra 2500 HD?
The currently available brand represented for the 2017 GMC Trucks Sierra 2500 HD is BFGoodrich. In the 245/75R17 fitment, that brand appears as the All-Terrain T/A KO2, a radial light-truck tire with raised white letter styling and an all-terrain character.
Brand choice is only one part of the decision. The more important step is making sure the tire matches the truck's actual size and wheel diameter, then comparing construction, rim-width compatibility, load capacity, and tread style to the way the Sierra 2500 HD is used.
Restoration & Appearance
Which tire should I choose for a period-style 2017 GMC Trucks Sierra 2500 HD?
A period-style 2017 GMC Trucks Sierra 2500 HD should start with the correct original-type size family for the truck's wheel setup: 245/75R17, 265/70R18, or 265/60R20. Since this is a modern heavy-duty pickup, the visual goal is usually preserving the truck's factory-era stance and wheel-to-tire relationship rather than recreating a vintage bias-ply look.
Appearance works best when the tire size matches the truck's trim and wheel package rather than simply filling the wheel opening. Raised white letter styling can add a more assertive truck presentation, while other buyers may prefer a cleaner look, so the final choice should balance size accuracy, use, and visual character.
Does correct tire fitment matter for a 2017 GMC Trucks Sierra 2500 HD restoration?
Yes, correct tire fitment matters on a 2017 GMC Trucks Sierra 2500 HD restoration because the tire size is part of the truck's stance, wheel proportion, and overall finished look. Using the wrong diameter or profile can change the visual balance of the truck even before any road-use issues appear.
For a restoration-minded build, start by confirming the truck's proper wheel diameter and sub-model fitment, then choose a tire that supports the desired presentation. Buyers pursuing exact originality should also compare the truck against period sales material, window-sticker details, or marque-specific references before settling on a final tire setup.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2017 GMC Trucks Sierra 2500 HD?
Yes. Modifications can change tire fitment on a 2017 GMC Trucks Sierra 2500 HD even when the tire size sounds close to original. Aftermarket wheels, different wheel widths, altered offsets, leveling kits, suspension changes, or body modifications can all affect how a 245/75R17, 265/70R18, or 265/60R20 tire sits and clears.
A truck with changes should be checked at full steering lock and through normal suspension movement before settling on a replacement tire. It also helps to confirm the actual wheel diameter and width already on the truck, since a modified Sierra 2500 HD may no longer match its original trim-based fitment.
What should I inspect before driving a 2017 GMC Trucks Sierra 2500 HD on new tires?
Before driving a 2017 GMC Trucks Sierra 2500 HD on new tires, inspect the wheels for damage, confirm the tire size matches the wheel diameter, and make sure inflation pressure is appropriate for the tire and intended use. It is also smart to look over valve stems, lug hardware, and general clearance around the suspension and fenders.
A short initial drive should be followed by another quick check for rubbing, unusual wear patterns, or air loss. Heavy-duty trucks place real demands on tires, so staying alert to vibration, steering pull, or contact marks early on can prevent a minor fitment issue from turning into a larger problem.
How often should tires on a 2017 GMC Trucks Sierra 2500 HD be inspected?
Tires on a 2017 GMC Trucks Sierra 2500 HD should be inspected regularly, not just when tread looks low. A heavy-duty truck benefits from routine checks for uneven wear, cracking, cuts, bulges, punctures, and slow air loss, especially if it tows, carries weight, or spends part of its life parked for longer periods.
Monthly pressure checks and visual inspections are a sensible baseline, with closer attention before towing or longer highway trips. It also helps to recheck the tires after any wheel, brake, or suspension work, since even minor changes can affect clearance, wear pattern, and the truck's overall road manners.
