The 1991 Ford Trucks Explorer arrived at the start of Ford’s shift from compact SUV utility toward a more family-friendly, everyday four-door and two-door sport-utility formula. That makes tire choice especially important, because this first-year Explorer can sit on either 235/75R15 or 225/70R15 radial tires depending on sub-model and wheel setup. Both sizes use a 15-inch rim, but they lead to different replacement decisions and different product personalities. Available choices range from raised white letter and blackwall looks to narrow and wide whitewall treatments. For an original-style presentation or regular road use, the key is matching the exact sub-model and current wheel dimensions before choosing a tire.
Which Tire Size Is Right for The 1991 Ford Trucks Explorer
The 1991 Ford Trucks Explorer uses two primary tire sizes, and the right one depends on the exact sub-model and wheel setup. Both are radial tires for 15-inch rims, so the first step is confirming whether your Explorer uses 235/75R15 or 225/70R15. Once that is settled, the decision shifts to sidewall style, tire series, brand, and the kind of period-correct or driver-oriented appearance you want.
235/75R15 is a metric radial size in which 235 identifies the nominal section width in millimeters, 75 is the aspect ratio, R designates radial construction, and 15 is the rim diameter in inches. On the 1991 Ford Trucks Explorer, this size supports the taller-profile radial fitment used across several sub-models. Available choices include BFGoodrich, American Classic, Maxxis, Coker Classic, Tornel, and Travelstar, with sidewall treatments ranging from RWL to narrow whitewall and wide whitewall. It is the size to evaluate when your Explorer is set up for the more traditional 75-series look on a 15-inch wheel.
225/70R15 is also a metric radial size, with a 225-millimeter nominal section width, a 70-series aspect ratio, radial construction, and a 15-inch rim diameter. On the 1991 Ford Trucks Explorer, this size appears on certain Sport and XL applications, so it should not be assumed for every sub-model. Product choices include Goodyear, Cooper, Michelin, Maxxis, and BFGoodrich, with RWL, blackwall, narrow whitewall, wide whitewall, pin-white-stripe, and redline options. This size is worth close attention if your Explorer already carries a lower-profile 15-inch tire and you want to preserve that overall stance and look.
Sub-model fitment matters on the 1991 Ford Trucks Explorer because some versions share one size while others can use either of the two primary sizes. Checking the exact trim is the quickest way to narrow the tire search before comparing brands, sidewall treatments, and other product details.
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1991 Ford Trucks Explorer Eddie Bauer
The 1991 Ford Trucks Explorer Eddie Bauer uses the 235/75R15 radial tire size. That makes selection more about choosing the right sidewall presentation and tire series for the way the vehicle is being preserved or driven, while still confirming the current wheel setup.
The 1991 Ford Trucks Explorer Sport can use either 225/70R15 or 235/75R15 radial tires. Tire selection starts with confirming which wheel and tire package is actually on the vehicle, then choosing the look and product style that best matches the intended use.
The 1991 Ford Trucks Explorer XL can use either 225/70R15 or 235/75R15 radial tires. That means the buyer should verify the exact wheel-and-tire combination on the truck before choosing among the available whitewall, blackwall, or raised white letter options.
The 1991 Ford Trucks Explorer XLT uses the 235/75R15 radial tire size. With the size established, the next decision is usually whether the vehicle needs a more truck-oriented sidewall treatment or a more restoration-minded whitewall presentation.
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 Ford Trucks Explorer Tires for Sale
Available 1991 Ford Trucks Explorer tires span both primary sizes and include choices from BFGoodrich, Goodyear, Cooper, Michelin, American Classic, Maxxis, Coker Classic, Tornel, and Travelstar. The product grid is most useful for comparing tire series, sidewall styles such as RWL, blackwall, redline, and whitewall, plus rim-width compatibility.
These FAQs focus on the two tire sizes used on the 1991 Ford Trucks Explorer, how sub-model fitment differs, and what to check when comparing sidewall styles, brands, wheel fitment, and road-use readiness.
Tire Size & Fitment
What tire size fits a 1991 Ford Trucks Explorer?
The 1991 Ford Trucks Explorer uses two primary tire sizes: 235/75R15 and 225/70R15. Both are radial sizes for 15-inch rims, but they do not apply the same way across every Explorer sub-model. Eddie Bauer and XLT use 235/75R15, while Sport and XL can use either 225/70R15 or 235/75R15.
That means the right starting point is identifying the exact sub-model and then confirming what wheel-and-tire package is actually on the vehicle today. A 15-inch rim is common to both sizes, so the deciding factor is not rim diameter alone. Checking the existing size on the vehicle and comparing wheel width helps prevent choosing the wrong replacement path.
What size rim does a 1991 Ford Trucks Explorer use?
The 1991 Ford Trucks Explorer uses a 15-inch rim with both of its primary tire sizes, 235/75R15 and 225/70R15. The tire code ends in 15 because both sizes are built for a 15-inch wheel diameter. That keeps rim diameter simple even though two different radial sizes are used across the Explorer range.
Rim diameter is only one part of the fitment picture, so it should not be the only measurement checked before ordering tires. Wheel width also matters, especially because the available products across these sizes show different approved rim-width ranges. If the Explorer has replacement wheels, verify both the diameter and the actual wheel width before settling on a tire.
Do all 1991 Ford Trucks Explorer sub-models use the same tire size?
No. The 1991 Ford Trucks Explorer does not use one tire size across every sub-model. Eddie Bauer and XLT use 235/75R15, while Sport and XL can use either 225/70R15 or 235/75R15, depending on the setup on the vehicle.
That variation means trim identification is important, but it is still wise to inspect the current wheels and tires before replacing anything. A Sport or XL may already be running one of the two approved sizes, and past wheel changes can further complicate the picture. Matching the tire to the actual vehicle setup is more useful than assuming every Explorer shares the same fitment.
Choosing the Right Tire
What should I consider when choosing a 235/75R15 or 225/70R15 tire for a 1991 Ford Trucks Explorer?
Start with the correct primary size for the sub-model and current wheel setup, because the 1991 Ford Trucks Explorer uses both 235/75R15 and 225/70R15. From there, compare radial construction details that matter to your goals, including sidewall treatment, rim-width compatibility, load figure, and the overall character of the tire series.
A buyer preserving a traditional early-1990s SUV look may lean toward whitewall or raised white letter styling, while a more neutral presentation may point toward blackwall. It also helps to compare the wheel width on the vehicle against the tire’s approved range. That keeps the choice grounded in both appearance and practical fitment, rather than size code alone.
What sidewall styles are available for 1991 Ford Trucks Explorer tires?
1991 Ford Trucks Explorer tires are available with several distinct sidewall styles depending on size and tire series. The choices include RWL, blackwall, narrow whitewall, wide whitewall, pin-white-stripe, and redline. Those options create very different visual results even when the tire size itself remains correct for the vehicle.
That makes sidewall style one of the biggest decisions once the proper size has been confirmed. A raised white letter tire gives the Explorer a more truck-oriented, period performance look, while whitewall variations can push it toward a more custom or restoration-minded presentation. The best choice depends on how the vehicle is being used and the appearance the owner wants to preserve.
What brands offer tires for the 1991 Ford Trucks Explorer?
The 1991 Ford Trucks Explorer has tire options from BFGoodrich, Goodyear, Cooper, Michelin, American Classic, Maxxis, Coker Classic, Tornel, and Travelstar. Brand availability depends on whether the vehicle uses 235/75R15 or 225/70R15, and each brand tends to appear in different tire series and sidewall styles rather than in one uniform type of replacement.
That means brand choice should be considered alongside size, rim-width requirements, and overall appearance. Some choices emphasize whitewall styling, others focus on raised white letters or a plain blackwall presentation. Comparing the full tire specification matters more than choosing by brand name alone, especially on a vehicle that can legitimately appear in several different visual directions.
Restoration & Appearance
Which tire should I choose for a period-style 1991 Ford Trucks Explorer?
A period-style 1991 Ford Trucks Explorer tire starts with using the correct primary size for the sub-model, either 235/75R15 or 225/70R15. After that, the strongest period-style cues come from sidewall treatment and tire series. Raised white letter designs can suit an early-1990s sport-utility look, while whitewall options create a more customized or nostalgic presentation.
The most convincing choice depends on how the Explorer is being restored or displayed, because not every correct-size tire creates the same visual impression. Owners seeking exact historical accuracy should compare the vehicle against original sales literature, photographs, or marque-specific references before settling on a sidewall style. That approach keeps appearance decisions grounded in the vehicle’s intended character.
How does tire construction affect the appearance of a restored 1991 Ford Trucks Explorer?
On the 1991 Ford Trucks Explorer, tire construction is straightforward because both primary fitments are radial. That means the visual difference in a restoration context usually comes less from bias-ply versus radial and more from the tire’s profile, series, and sidewall treatment, especially when comparing RWL, blackwall, and whitewall styles.
For a restored or carefully preserved Explorer, the tire can noticeably influence how the vehicle sits and how authentic the finished look feels. Keeping the correct primary size for the sub-model is the first step, then matching the sidewall style to the truck’s intended presentation. The result is a more coherent appearance without stretching beyond the fitment that belongs on the vehicle.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1991 Ford Trucks Explorer?
Yes. Modifications can affect tire fitment on a 1991 Ford Trucks Explorer even when the tire size itself is one of the correct primary sizes. Aftermarket wheels, suspension changes, altered ride height, or body modifications can change the clearance relationship around a 235/75R15 or 225/70R15 tire and may also alter the wheel width available for a safe match.
That is why a modified Explorer should be measured rather than treated like a stock truck. Check the actual wheel diameter and width, then inspect clearance at full steering lock and through suspension movement. A tire that suits an unmodified Explorer may need a closer review once wheel offset, springs, or fender position have changed from original configuration.
What should I inspect before driving a 1991 Ford Trucks Explorer on new tires?
Before driving a 1991 Ford Trucks Explorer on new tires, inspect the wheels for correct diameter and condition, confirm that the chosen size matches the sub-model and wheel setup, and look over the valve stems, lug hardware, and general wheel seating surfaces. Tire pressure should also be set correctly before the first road test.
A short, careful drive is the best way to verify that nothing rubs and that the vehicle tracks as expected. It also helps to recheck air pressure and inspect for any signs of contact after the first miles. On an older SUV, suspension wear or steering looseness can mask itself until fresh tires make the rest of the chassis more noticeable.
How should 235/75R15 or 225/70R15 tires on a collector 1991 Ford Trucks Explorer be maintained?
Collector-use 235/75R15 or 225/70R15 tires on a 1991 Ford Trucks Explorer should be checked regularly for pressure loss, tread wear, sidewall cracking, bulges, and cuts, even if the vehicle is driven infrequently. Low-mileage use does not stop a tire from aging, and long storage periods can hide condition issues until the truck is back on the road.
Good storage habits help preserve both function and appearance. Keeping the Explorer away from prolonged sun, heat, moisture, and ozone sources reduces unnecessary stress on the rubber. It is also smart to inspect the tires before any longer outing, because a vehicle that spends much of its time parked can still develop age-related issues between driving seasons.