The 1991 Chevrolet Trucks K3500 comes from a period when Chevrolet heavy-duty pickups were expected to handle work, towing, and four-wheel-drive service without giving up everyday usability. In K3500 form, that means tire choice is closely tied to load-carrying needs, wheel setup, and how the truck is actually used today. This model uses radial 16-inch tire fitments in 225/75R16 and 245/75R16. Available choices center on BFGoodrich All-Terrain T/A KO2 tires with raised white letter sidewalls, giving the truck a distinctly truck-oriented look. The key decision is confirming which size suits the truck’s wheel width, stance, and intended use before choosing a specific tire.
Which Tire Size Is Right for The 1991 Chevrolet Trucks K3500
The 1991 Chevrolet Trucks K3500 uses two primary tire sizes, and both are radial fitments for 16-inch wheels. Because Cheyenne and Silverado models can use either size, the main question is not trim level alone but which wheel width and tire setup are already on the truck. Confirming the actual wheel and current fitment is the best first step before choosing between the two sizes.
In 225/75R16, the 225 identifies section width in millimeters, 75 is the aspect ratio, R indicates radial construction, and 16 is the wheel diameter in inches. For the 1991 Chevrolet Trucks K3500, this is a modern metric radial fitment that stays within the truck’s 16-inch wheel family. The available option in this size is a BFGoodrich All-Terrain T/A KO2 with raised white letter sidewalls, giving it a traditional all-terrain truck presentation. This size is worth considering when the truck is already set up for the narrower fitment and the wheel width matches the tire’s requirements.
In 245/75R16, the 245 marks the tire’s nominal section width in millimeters, 75 is the aspect ratio, R designates radial construction, and 16 identifies the rim diameter. On the 1991 Chevrolet Trucks K3500, this size remains a 16-inch radial fitment but adds width compared with 225/75R16. The current product choice is a BFGoodrich All-Terrain T/A KO2 with raised white letter styling, aimed at owners who want an all-terrain look and heavy-duty light-truck specification. This size should be evaluated against the truck’s actual wheel width and clearance before treating it as the right choice for a specific truck.
Tire fitment is straightforward across the covered 1991 Chevrolet Trucks K3500 sub-models because both Cheyenne and Silverado can use the same two radial sizes. What matters most is confirming which 16-inch wheel and tire combination is actually on the truck before selecting a replacement.
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1991 Chevrolet Trucks K3500 Cheyenne
The 1991 Chevrolet Trucks K3500 Cheyenne can use either 225/75R16 or 245/75R16 in radial construction. Tire selection comes down to matching the truck’s existing wheel width and deciding whether the current setup favors the narrower or wider 16-inch fitment.
The 1991 Chevrolet Trucks K3500 Silverado also uses 225/75R16 or 245/75R16 radial tires. That makes wheel confirmation especially important, since the correct replacement depends on the truck’s present 16-inch wheel setup rather than the Silverado name alone.
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 1991 Chevrolet Trucks K3500 Tires for Sale
Available 1991 Chevrolet Trucks K3500 tire choices center on BFGoodrich All-Terrain T/A KO2 options in 225/75R16 and 245/75R16. Both are radial 16-inch tires with raised white letter sidewalls, but rim-width compatibility, load capacity, and overall size differ between the two fitments.
These FAQs cover 1991 Chevrolet Trucks K3500 tire sizes, 16-inch rim fitment, product selection, sidewall styling, and the practical checks that matter before putting a heavy-duty pickup back on the road.
Tire Size & Fitment
What tire size fits a 1991 Chevrolet Trucks K3500?
The 1991 Chevrolet Trucks K3500 uses two primary tire sizes: 225/75R16 and 245/75R16. Both are radial tires designed for 16-inch wheels, and both sizes appear across the K3500 line, including Cheyenne and Silverado sub-models.
That means the correct choice depends on the truck’s actual wheel and tire setup rather than assuming one size applies to every individual truck. Checking the size on the current tires, confirming wheel width, and looking for any aftermarket wheel or suspension changes will help narrow the choice before replacing a full set.
What size rim does a 1991 Chevrolet Trucks K3500 use?
The 1991 Chevrolet Trucks K3500 uses a 16-inch rim with both of its primary tire sizes. The two fitments, 225/75R16 and 245/75R16, share that same wheel diameter, so the rim question is about width as much as diameter.
A 225/75R16 BFGoodrich All-Terrain T/A KO2 is suited to 6.0- to 7.0-inch rim widths, while the 245/75R16 version calls for 6.5- to 8.0-inch widths. Measuring the wheel or confirming its stamped specification helps prevent choosing a tire that may not suit the truck’s present wheel setup.
Do all 1991 Chevrolet Trucks K3500 sub-models use the same tire size?
Cheyenne and Silverado versions of the 1991 Chevrolet Trucks K3500 share the same two tire-size possibilities: 225/75R16 and 245/75R16. Both sub-models use radial construction on 16-inch wheels, so trim level alone does not separate the fitment.
That shared fitment range makes it especially important to verify what is actually mounted on the truck. A replacement should match the existing wheel width and intended use, particularly on a heavy-duty pickup where tire size affects stance, load capacity, and clearance around steering and suspension components.
Choosing the Right Tire
What should I consider when choosing a 225/75R16 or 245/75R16 tire for a 1991 Chevrolet Trucks K3500?
Start with the correct size for the truck’s existing wheel setup, since the 1991 Chevrolet Trucks K3500 can use either 225/75R16 or 245/75R16. Both are radial 16-inch fitments, but they differ in section width, rim-width suitability, weight, and load capacity.
A practical comparison includes wheel width, how the truck is used, and whether the current tires already provide the stance and clearance you want. The BFGoodrich options in these sizes also differ in rated load and physical size, so the decision should reflect the truck’s work demands as much as appearance.
What sidewall styles are available for 1991 Chevrolet Trucks K3500 tires?
The available 1991 Chevrolet Trucks K3500 tire options in these sizes use RWL sidewalls, meaning raised white letters. That gives the truck a traditional all-terrain light-truck look rather than a plain blackwall presentation.
Sidewall style matters because it changes the truck’s visual character even when the basic fitment stays the same. Raised white letters tend to suit period truck styling well, but the more important selection step is still confirming the proper size and wheel width so the appearance choice does not override correct fitment.
What brands offer tires for the 1991 Chevrolet Trucks K3500?
BFGoodrich offers the available tires for the 1991 Chevrolet Trucks K3500 in the covered sizes. The current fitment choices are from the All-Terrain T/A KO2 series in both 225/75R16 and 245/75R16.
With a single brand and series in view, the comparison shifts away from brand shopping and toward selecting the right size for the truck. Wheel-width compatibility, load capacity, and the truck’s intended use become the main decision points, especially for owners using a K3500 for hauling, towing, or regular road miles.
Restoration & Appearance
Which tire should I choose for a period-style 1991 Chevrolet Trucks K3500?
A period-style 1991 Chevrolet Trucks K3500 starts with the correct 16-inch radial fitment, either 225/75R16 or 245/75R16, depending on the truck’s actual setup. Staying within those original-style sizing conventions keeps the truck’s stance and overall presentation closer to its era.
Appearance should still follow fitment, not replace it. A truck kept close to stock usually looks most natural when the tire size matches the wheel and ride height already on the vehicle, while heavily modified trucks may need a different visual balance. Photos, original literature, and marque-specific references can help when exact presentation matters.
How does tire construction affect the appearance of a restored 1991 Chevrolet Trucks K3500?
On a restored 1991 Chevrolet Trucks K3500, tire construction is straightforward because the primary fitments are radial rather than bias-ply. That means the appearance difference comes less from construction choice and more from the selected size, tread character, and sidewall treatment.
The available BFGoodrich All-Terrain T/A KO2 options use raised white letter sidewalls, which give the truck a distinctly rugged, late-era pickup look. Owners aiming for a restoration-oriented presentation should make sure the visual style fits the truck’s overall build, while also keeping the size appropriate to the wheels and stance.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1991 Chevrolet Trucks K3500?
Yes, modifications can affect tire fitment on a 1991 Chevrolet Trucks K3500 even when the tire size itself is one of the standard options. Aftermarket wheels, changes in wheel width, altered offset, suspension lifts, and steering or brake upgrades can all change how 225/75R16 or 245/75R16 fits the truck.
That matters because a tire that suits one K3500 may not suit another with non-stock hardware. Checking wheel width, inner and outer clearance, and the truck’s current ride height before replacement helps avoid rubbing or mismatch problems, especially when stepping from the narrower size to the wider one.
What should I inspect before driving a 1991 Chevrolet Trucks K3500 on new tires?
Before driving a 1991 Chevrolet Trucks K3500 on new tires, inspect the wheels for damage, verify lug hardware condition, and make sure the installed tire size matches the truck’s intended setup. It also helps to check brake components, suspension wear, and any obvious steering looseness that could affect how the truck feels on fresh tires.
Air pressure should be set correctly for the tire and the truck’s use, and the new tires should be checked for adequate clearance at full steering lock. A short, careful road test is a smart final step, especially on a heavy-duty four-wheel-drive truck where alignment or worn front-end parts can show up quickly.
How should 225/75R16 and 245/75R16 tires on a collector 1991 Chevrolet Trucks K3500 be maintained?
Collector-use tires on a 1991 Chevrolet Trucks K3500 should be kept properly inflated, inspected for cracking, cuts, bulges, and irregular wear, and checked regularly for air loss. Even a truck that is driven infrequently still needs routine tire attention because age and storage conditions affect radial tires over time.
Storage habits make a real difference on low-mileage trucks. Keeping the K3500 away from prolonged sunlight, excess heat, moisture, and ozone sources helps preserve the tires, while occasional movement can reduce flat spotting. It is also wise to inspect tread and sidewalls before any longer drive rather than assuming low use means low risk.
