The 1991 GMC Trucks V3500 sits in the final era of square-body and rounded-line heavy-duty GM pickups, a time when one-ton trucks were expected to work hard but still serve as tow rigs, farm trucks, and long-wheelbase haulers. That utility focus matters when choosing tires, because this V3500 uses two different radial sizes depending on whether the truck is a single-rear-wheel or dual-rear-wheel setup. The key fitment decision centers on 215/85R16 versus 235/85R16, both on 16-inch rims. For owners sorting out replacement tires, the real priority is matching the exact truck configuration, then checking wheel width, load needs, and intended road use before choosing a tire.
Which Tire Size Is Right for The 1991 GMC Trucks V3500
The 1991 GMC Trucks V3500 uses two primary tire sizes, and the correct one depends on the exact sub-model. Both are radial tires for 16-inch rims, but single-rear-wheel and dual-rear-wheel configurations do not use the same size. Before choosing a tire, confirm whether the truck is a Base or SLE model with single rear wheels, or a DRW version with dual rear wheels.
215/85R16 is a metric radial size in which 215 identifies the nominal section width in millimeters, 85 is the aspect ratio, R indicates radial construction, and 16 is the rim diameter in inches. On the 1991 GMC Trucks V3500, this size is used on the dual-rear-wheel versions, making configuration confirmation especially important before replacement. Its tall, narrow profile suits the truck’s heavy-duty fitment pattern and should be matched to the actual wheel setup on the vehicle. Buyers should verify rear wheel arrangement and wheel dimensions before assuming this size applies to every V3500.
235/85R16 is a metric radial size with a 235-millimeter nominal section width, an 85-series profile, radial construction, and a 16-inch rim diameter. On the 1991 GMC Trucks V3500, this size belongs to the Base and SLE single-rear-wheel models rather than the dual-rear-wheel versions. Available choices in this size include BFGoodrich, with an All-Terrain T/A KO2 option featuring raised white letters and a published rim-width range of 6.0 to 7.5 inches. This size is the one to evaluate when the truck retains its single-rear-wheel setup and 16-inch wheels.
Sub-model fitment matters on the 1991 GMC Trucks V3500 because tire size changes with the truck’s rear-wheel configuration. Base and SLE single-rear-wheel models use one size, while DRW versions use a different one, so identifying the exact sub-model is the first step before comparing tires.
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1991 GMC Trucks V3500 (DRW)
The 1991 GMC Trucks V3500 (DRW) uses the narrower 215/85R16 radial size on a 16-inch rim. That makes wheel and rear-wheel configuration more important than trim name alone when selecting a replacement tire for a dual-rear-wheel truck.
The 1991 GMC Trucks V3500 Base uses 235/85R16 radial tires on 16-inch rims. Tire selection for this sub-model centers on choosing the right product within that size and confirming the truck still has its original single-rear-wheel wheel setup.
The 1991 GMC Trucks V3500 SLE shares the 235/85R16 radial size with the Base single-rear-wheel truck. That means the main decision is not the size itself, but choosing a tire that matches the wheel width, use pattern, and appearance you want.
The 1991 GMC Trucks V3500 SLE (DRW) uses 215/85R16 radial tires on 16-inch rims, just like the other dual-rear-wheel version. For this sub-model, proper tire selection starts with confirming the dually wheel arrangement and staying with the size intended for that 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 1991 GMC Trucks V3500 Tires for Sale
Available product selection centers on 235/85R16, where BFGoodrich offers an All-Terrain T/A KO2 radial with raised white letters. That gives single-rear-wheel V3500 owners a clear product comparison point with published rim-width and load specifications.
Common 1991 GMC Trucks V3500 tire questions usually come down to choosing between 215/85R16 and 235/85R16, confirming DRW versus single-rear-wheel fitment, and comparing available radial tire choices for work, towing, and regular road use.
Tire Size & Fitment
What tire size fits a 1991 GMC Trucks V3500?
The 1991 GMC Trucks V3500 uses either 215/85R16 or 235/85R16, and both are radial sizes for 16-inch rims. Dual-rear-wheel versions use 215/85R16, while the Base and SLE single-rear-wheel models use 235/85R16.
The important step is matching the tire size to the truck’s exact rear-wheel configuration instead of choosing by year and model alone. A V3500 that has been modified with different wheels or a changed axle setup should have its wheel size and actual tire clearance checked before replacement tires are selected.
What size rim does a 1991 GMC Trucks V3500 use?
The 1991 GMC Trucks V3500 uses a 16-inch rim diameter with both of its primary tire sizes. That applies to the 215/85R16 fitment used on DRW models and the 235/85R16 fitment used on Base and SLE single-rear-wheel versions.
Rim diameter is only one part of fitment, so it should not be the only number checked. Wheel width still matters, especially when comparing available tire options, and any truck with aftermarket wheels should be measured carefully to confirm the tire matches both the wheel and the truck’s actual working setup.
Do all 1991 GMC Trucks V3500 sub-models use the same tire size?
No, the 1991 GMC Trucks V3500 does not use one tire size across every sub-model. Base and SLE single-rear-wheel trucks use 235/85R16, while the V3500 (DRW) and V3500 SLE (DRW) use 215/85R16.
That difference exists because the rear-wheel arrangement changes the fitment requirements. Anyone replacing tires on a V3500 should confirm the exact sub-model and verify whether the truck is a single-rear-wheel or dually configuration before comparing brands, tread styles, or load-related specifications.
Choosing the Right Tire
What should I consider when choosing a 235/85R16 tire for a 1991 GMC Trucks V3500?
For a 1991 GMC Trucks V3500 that uses 235/85R16, start with the correct sub-model and make sure the truck is a single-rear-wheel Base or SLE. After size is confirmed, compare construction, load capacity, rim-width compatibility, sidewall style, and the kind of driving the truck actually sees.
A truck used for hauling, towing, or mixed pavement and unpaved driving may call for a different product character than one used mainly for occasional road miles. The BFGoodrich option in this size includes a published 6.0 to 7.5 inch rim-width range, so the wheel itself should be checked before final selection.
What sidewall styles are available for 1991 GMC Trucks V3500 tires?
Among the available 235/85R16 products for the 1991 GMC Trucks V3500, raised white letter styling is available. That sidewall treatment appears on the BFGoodrich All-Terrain T/A KO2 option and gives the truck a more traditional light-truck performance look than a plain blackwall presentation.
Sidewall style does not change the need to match the correct tire size and wheel setup. It is best treated as a secondary choice after confirming whether the truck uses 215/85R16 or 235/85R16, since appearance matters less than proper fitment on a heavy-duty one-ton truck.
What brands offer tires for the 1991 GMC Trucks V3500?
BFGoodrich is represented in the available 235/85R16 fitment for the 1991 GMC Trucks V3500. The product range shown for that size includes the All-Terrain T/A KO2 radial, giving single-rear-wheel owners a recognized light-truck tire series to evaluate.
Brand should be only one part of the selection process. The more important checks are whether the tire matches the truck’s exact size requirement, whether the wheel width is compatible, and whether the tire’s construction and load-related specifications suit the way the V3500 is actually used.
Restoration & Appearance
Which tire should I choose for a period-style 1991 GMC Trucks V3500?
A period-style 1991 GMC Trucks V3500 should start with the correct original-type sizing approach for the truck’s configuration: 215/85R16 for DRW models or 235/85R16 for Base and SLE single-rear-wheel models. Since this truck uses radial primary fitments, keeping the right radial size is the first step toward a proper visual stance.
After size is confirmed, appearance choices come from tread character and sidewall treatment rather than from changing to a different construction type. Owners pursuing a highly accurate restoration should compare surviving vehicle documentation, period photos, and marque-specific references before treating any modern brand or sidewall style as exact original appearance.
Does correct tire fitment matter for a 1991 GMC Trucks V3500 restoration?
Yes, correct tire fitment matters on a 1991 GMC Trucks V3500 restoration because the truck’s stance, wheel-well fill, and working character all depend on using the proper size for the actual sub-model. A DRW truck on 215/85R16 presents differently from a single-rear-wheel Base or SLE truck on 235/85R16.
Restoration-minded owners should treat sub-model identification as part of the visual process, not just a mechanical detail. Even when the wheel diameter is the same, the wrong width or tire size can change the truck’s proportions, so the wheel setup and rear-wheel arrangement deserve confirmation before new tires are mounted.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1991 GMC Trucks V3500?
Yes, modifications can affect tire fitment on a 1991 GMC Trucks V3500 even when the replacement tire is one of the correct stock sizes. Aftermarket wheels, suspension changes, ride-height changes, brake conversions, and axle or rear-wheel setup changes can all alter the space available for a tire.
A truck that no longer has its original wheel and suspension configuration should be checked carefully before new tires are chosen. Wheel diameter, wheel width, and clearance around fenders, steering components, and rear dual spacing all matter, especially on a one-ton platform that may still be expected to carry real loads.
What should I inspect before driving a 1991 GMC Trucks V3500 on new tires?
Before driving a 1991 GMC Trucks V3500 on new tires, inspect the wheels for correct size and condition, confirm proper inflation, and make sure each tire clears the truck through steering and suspension movement. Lug torque, valve stems, and general wheel condition also deserve attention before the truck returns to regular road use.
A heavy-duty truck should also be checked for age-related issues that can affect tire performance, including loose steering parts, worn shocks, sagging springs, or brake drag. A short test drive followed by a recheck of inflation and visible clearance can help catch problems before the V3500 is asked to tow or haul.
What should I check before a longer drive in a 1991 GMC Trucks V3500?
Before a longer drive in a 1991 GMC Trucks V3500, check inflation pressure, tread condition, visible cuts or bulges, and any signs of irregular wear. The spare, if carried, should also be inspected so the truck is not relying on an old or mismatched tire if a roadside change becomes necessary.
Longer trips put more heat and load into a one-ton truck than local use, so the wheel and tire package needs to be in sound condition. It also helps to confirm that the tires installed match the truck’s actual single-rear-wheel or dual-rear-wheel setup, especially on older trucks that may have changed hands or been modified over time.
