The 2013 Chevrolet Trucks Avalanche closed out Chevrolet’s full-size sport utility pickup with the Black Diamond edition, giving buyers a final-year version of a truck known for blending SUV comfort with open-bed utility. That mix matters when tire selection comes up, because this Avalanche uses radial tires in more than one size depending on trim and wheel package. Primary fitments include 265/70R17, 265/65R18, and 275/55R20, so the first step is confirming the exact sub-model and wheel diameter. From there, the decision shifts to choosing the right load range, sidewall presentation, and intended road or light off-road use for the way the truck is actually driven.
Which Tire Size Is Right for The 2013 Chevrolet Trucks Avalanche
The 2013 Chevrolet Trucks Avalanche uses three primary tire sizes, and the correct one depends on the exact Black Diamond sub-model and wheel diameter. All three are radial fitments, but they span 17-inch, 18-inch, and 20-inch rims, so confirming the truck’s current wheel setup is the first step before comparing tire options or load specifications.
265/70R17 is a metric radial size with a 265-millimeter section width, a 70-series aspect ratio, and fitment for a 17-inch rim. On the 2013 Chevrolet Trucks Avalanche, this size is one of the primary radial fitments and suits trucks equipped with the corresponding 17-inch wheel package. Available options in this size include BFGoodrich All-Terrain T/A KO2 tires with raised white letter sidewalls and differing load capacities. This size is worth evaluating carefully if the truck sees utility use, mixed road conditions, or has retained its original 17-inch wheel diameter.
Fit(s): Black Diamond LS, Black Diamond LT, and Black Diamond LTZ
Construction: Radial|Rim: 20 in
275/55R20 is a metric radial size that pairs a 275-millimeter section width with a 55-series profile on a 20-inch rim. For the 2013 Chevrolet Trucks Avalanche, this size applies to certain Black Diamond trims equipped with 20-inch wheels, so it should not be treated as universal across all Avalanches. Its lower-profile format gives the buyer a different wheel-and-tire presentation than the 17-inch or 18-inch fitments. This is the size to consider when the truck already has the correct 20-inch wheel setup and clearance has not been altered by aftermarket changes.
265/65R18 is a metric radial size with a 265-millimeter section width, a 65-series profile, and an 18-inch rim diameter. On the 2013 Chevrolet Trucks Avalanche, this size is tied to the Black Diamond LT with Off-Road Package, making it a sub-model-specific fitment rather than a size used across the full lineup. It sits between the 17-inch and 20-inch combinations in wheel diameter while keeping the modern radial construction expected for this truck. Buyers should verify that the Avalanche still has its 18-inch wheels and package-specific setup before selecting tires in this size.
Tire fitment on the 2013 Chevrolet Trucks Avalanche varies by Black Diamond trim and wheel package rather than following one size across the board. Checking the exact sub-model matters because this truck uses three different rim diameters, and the right tire choice starts with matching the existing wheel setup.
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2013 Chevrolet Trucks Avalanche Black Diamond LS
The 2013 Chevrolet Trucks Avalanche Black Diamond LS uses either a 265/70R17 or 275/55R20 radial fitment, depending on the wheel setup on the truck. That makes wheel diameter the key checkpoint before comparing tire choices, load specifications, or overall tire style.
The 2013 Chevrolet Trucks Avalanche Black Diamond LT also uses either 265/70R17 or 275/55R20 radial tires. Tire selection here depends on confirming whether the truck carries the 17-inch or 20-inch wheel package before moving on to brand, sidewall, and use-case decisions.
2013 Chevrolet Trucks Avalanche Black Diamond LT w/Off-Road Pkg.
The 2013 Chevrolet Trucks Avalanche Black Diamond LT w/Off-Road Pkg. uses the 265/65R18 radial size. That narrower fitment path simplifies selection, but the buyer should still confirm the 18-inch wheel setup and choose a tire that matches how the truck is used on pavement and beyond it.
The 2013 Chevrolet Trucks Avalanche Black Diamond LTZ uses the 275/55R20 radial size. Since this trim is tied to a 20-inch wheel, the main decision becomes staying with the correct size while comparing tire type, load rating, and the truck’s current wheel and suspension condition.
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 Chevrolet Trucks Avalanche Tires for Sale
Current product choices for 265/70R17 center on BFGoodrich All-Terrain T/A KO2 tires with raised white letter sidewalls, radial construction, and differing load capacities. That gives Avalanche owners a useful way to compare load range, rim-width compatibility, and intended use within the same primary size.
These 2013 Chevrolet Trucks Avalanche FAQs focus on the exact tire sizes used across Black Diamond trims, wheel-diameter differences, radial fitment, product selection, and the checks that matter before putting the truck back into regular road use.
Tire Size & Fitment
What tire size fits a 2013 Chevrolet Trucks Avalanche?
The 2013 Chevrolet Trucks Avalanche uses three primary tire sizes: 265/70R17, 265/65R18, and 275/55R20. All are radial sizes, but they do not apply to every Avalanche in the lineup. The correct fitment depends on the exact Black Diamond sub-model and, just as importantly, the wheel diameter currently on the truck.
A quick visual check of the wheels often answers the first fitment question faster than anything else, because this Avalanche spans 17-inch, 18-inch, and 20-inch rim packages. If the truck has been changed from its original setup, match the tire size to the actual wheel diameter and confirm adequate clearance before choosing a replacement.
What size rim does a 2013 Chevrolet Trucks Avalanche use?
A 2013 Chevrolet Trucks Avalanche can use 17-inch, 18-inch, or 20-inch rims, depending on the Black Diamond trim and package. The corresponding tire sizes are 265/70R17 for 17-inch rims, 265/65R18 for 18-inch rims, and 275/55R20 for 20-inch rims. Each tire size is built around its matching rim diameter.
Rim diameter is the first measurement to confirm because a tire designed for a 17-inch wheel cannot be mounted on an 18-inch or 20-inch wheel. After that, check wheel width and overall vehicle setup, especially if the Avalanche has aftermarket wheels, suspension changes, or a package history that is no longer obvious from the trim badge alone.
Why does the 2013 Chevrolet Trucks Avalanche have more than one tire size?
The 2013 Chevrolet Trucks Avalanche has more than one tire size because different Black Diamond trims and packages used different wheel diameters. Some versions use 265/70R17, some use 265/65R18, and others use 275/55R20. That variation reflects the specific wheel-and-tire package installed on the truck rather than one universal Avalanche fitment.
For the buyer, that means trim name alone is not always enough if the truck has been modified or wheels have been changed over time. Confirm the current wheel diameter, then match the tire size to that wheel before comparing load capacity, sidewall style, or tread type. That approach avoids treating all Avalanche trims as mechanically identical.
Choosing the Right Tire
What should I consider when choosing a 265/70R17 tire for a 2013 Chevrolet Trucks Avalanche?
Start with the basics: the truck must actually use the 265/70R17 size and have the correct 17-inch wheels. Within that size, the available BFGoodrich All-Terrain T/A KO2 options differ in load capacity, inflation specification, and weight, even though they share the same overall size and raised white letter sidewall presentation.
The practical choice comes down to how the Avalanche is used. A truck that spends more time hauling, towing, or seeing rougher surfaces may call for a different load-rated version than one used primarily as a street-driven utility vehicle. Rim-width compatibility also matters, so compare the wheel width on the truck before deciding between available 265/70R17 options.
What sidewall styles are available for 2013 Chevrolet Trucks Avalanche tires?
Among the currently available products for the 2013 Chevrolet Trucks Avalanche in 265/70R17, the sidewall style is RWL, or raised white letter. That gives the truck a more traditional light-truck appearance than a plain black sidewall and can change the overall visual character even when the tire size remains the same.
Sidewall style is an appearance decision, but it should still be secondary to correct size, wheel fit, and load needs. On an Avalanche, raised white letters can suit a more rugged or off-road-oriented presentation, especially with an all-terrain tire. Buyers who want a different look should still begin by confirming the right size for the trim and wheel package.
What brands offer tires for the 2013 Chevrolet Trucks Avalanche?
Current product coverage for the 2013 Chevrolet Trucks Avalanche in 265/70R17 includes BFGoodrich. The available offering is the All-Terrain T/A KO2 series, a radial tire with raised white letter sidewalls. That means the brand decision in this size is less about comparing several manufacturers and more about selecting the right specification within the available BFGoodrich lineup.
Even when only one brand appears in the current selection, there is still meaningful comparison to make. Load capacity, tire weight, inflation specification tied to maximum load, and wheel-width compatibility can all affect which version makes the most sense. The right approach is to match the tire to the Avalanche’s actual use rather than choosing only by brand name.
Restoration & Appearance
Which tire should I choose for a period-style 2013 Chevrolet Trucks Avalanche?
A period-style 2013 Chevrolet Trucks Avalanche starts with the correct original-size format for the truck’s trim and wheel package, whether that is 265/70R17, 265/65R18, or 275/55R20. Since this is a modern full-size Chevrolet truck, radial construction is already the proper general tire type for the vehicle’s era and intended road use.
Appearance then comes from the wheel-and-tire combination rather than from chasing vintage construction. A raised white letter all-terrain tire can give a stronger truck-oriented presentation, while other sizes may preserve a more factory-inspired stance depending on the wheels on the vehicle. For exact originality, compare against trim-specific brochures, window-sticker records, or marque references.
Does correct tire fitment matter for a 2013 Chevrolet Trucks Avalanche restoration?
Correct tire fitment matters on a 2013 Chevrolet Trucks Avalanche restoration because the truck used multiple wheel and tire packages across the Black Diamond range. Using the wrong rim diameter or an incorrect tire profile can change the truck’s stance and visual balance, even before any driving-related considerations come into play.
A restoration-minded buyer should confirm the sub-model, wheel diameter, and overall look being preserved before choosing tires. That is especially important on a final-year Avalanche, where trim-specific presentation can be part of the vehicle’s appeal. Matching the truck to its intended wheel-and-tire package usually delivers a more coherent result than mixing sizes from different trims.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2013 Chevrolet Trucks Avalanche?
Yes, modifications can affect tire fitment on a 2013 Chevrolet Trucks Avalanche. Wheel changes, altered offsets, leveling kits, lowering, suspension wear, or body modifications can all change how a 265/70R17, 265/65R18, or 275/55R20 tire sits in the wheel opening. Even when the nominal size matches the trim, the actual truck may no longer reflect stock clearances.
That matters most when steering is at full lock, the suspension compresses, or the truck carries passengers and cargo. Check the current wheel diameter and width first, then inspect fender, inner-liner, and suspension clearances before replacing tires. A modified Avalanche should always be evaluated as it sits now, not only by the trim it left the factory with.
What should I inspect before driving a 2013 Chevrolet Trucks Avalanche on new tires?
Before driving a 2013 Chevrolet Trucks Avalanche on new tires, inspect the wheels for the correct diameter and condition, verify that the installed tire size matches the truck’s setup, and check that inflation is appropriate for the tire selected. It also helps to look over suspension components, alignment condition, and visible clearance around the wheel wells.
A short test drive should include listening for rubbing, checking steering response, and confirming that the tires clear under turning and compression. After the first miles, recheck pressure and inspect for any unusual contact marks. On a truck that may haul gear or tow, it is also smart to confirm that the chosen tire’s load capacity suits how the Avalanche is used.
How often should tires on a 2013 Chevrolet Trucks Avalanche be inspected?
Tires on a 2013 Chevrolet Trucks Avalanche should be inspected regularly, not just when tread looks low. Monthly pressure checks are a sensible habit, and the tires should also be looked over before longer drives, seasonal changes, or heavier-duty use. Wear pattern, cuts, bulges, cracking, and repeated air loss all deserve prompt attention.
That routine matters even more on a truck that is driven inconsistently, because age and underinflation can become issues before tread wear does. Pay attention to how the tires are wearing across the tread face, since uneven wear can point to alignment or suspension problems. Consistent inspection helps preserve ride quality and catches fitment or maintenance issues early.
