De Soto Custom & Deluxe Tires

De Soto Custom & Deluxe uses three listed tire sizes across 1948 and 1949: 700-15 for 1948, 760-15 for 1948 and 1949, and 650-16 for 1948. The 700-15 and 760-15 sizes both fit 15-inch rims, while 650-16 fits 16-inch rims. That means a 1948 De Soto Custom & Deluxe can appear with either 15-inch or 16-inch wheel fitments, while 1949 narrows to 760-15 on 15-inch rims.

The practical takeaway is that year alone is not enough for a 1948 car. Check the wheel diameter stamped on the rim if possible, measure the wheel directly, and compare the existing tire size before deciding between 700-15, 760-15, and 650-16. Once the rim diameter is confirmed, the remaining choice usually comes down to matching the car’s configuration and the look you want for the finished car.

A 760-15 tire for De Soto Custom & Deluxe uses the older numeric bias-ply system. The 760 indicates a nominal 7.60-inch section width, written without a decimal point, and the 15 indicates a 15-inch rim diameter. On this model, 760-15 appears in both 1948 and 1949 and is the only listed size that spans the full production range covered here.

That older numeric code is useful because it tells you the wheel diameter immediately, but it still needs to be matched to the actual car. If your De Soto Custom & Deluxe carries 15-inch wheels, 760-15 may be correct, but a 1948 car could also use 700-15 depending on configuration. Compare the wheel diameter first, then use the year listing to sort out which 15-inch size belongs on your specific car.

A 1948 De Soto Custom & Deluxe has three listed sizes because that model year includes a configuration split. The sizes are 700-15, 760-15, and 650-16, and the split is not just about section width; it also includes two different rim diameters, 15 inches and 16 inches. That makes 1948 the most complex year in this range from a fitment standpoint.

Sorting that out starts with the wheels on the actual car, not just the title or registration year. Once you know whether the car carries 15-inch or 16-inch rims, the field narrows quickly. If the car has 15-inch wheels, you still need to decide between 700-15 and 760-15 by checking the existing setup, original references, or a marque specialist familiar with De Soto trim and chassis differences.

De Soto Custom & Deluxe uses both 15-inch and 16-inch rim diameters in the covered years. The 700-15 and 760-15 sizes are built for 15-inch rims, while 650-16 is built for 16-inch rims. In practice, 1948 is the year where both diameters appear, and 1949 settles on a 15-inch fitment with 760-15.

Rim diameter is the first fitment fact to confirm because a 15-inch tire will not fit a 16-inch wheel, and vice versa. Look for the wheel size on the rim if it is visible, verify the size molded into any existing tire if it appears trustworthy, and use original paperwork if the car still has it. That one check prevents the most common mistake on this De Soto page.

Start with the production year, then confirm the wheel diameter on the actual De Soto Custom & Deluxe. A 1949 car points directly to 760-15 on a 15-inch rim, but a 1948 car can use 700-15, 760-15, or 650-16 depending on configuration. The key distinction is whether the car has 15-inch or 16-inch wheels, because that immediately eliminates the wrong group of tires.

After wheel diameter, compare the tire size on the car now with original paperwork, restoration records, or marque references. If the car is already restored, make sure the wheel and tire combination was not changed earlier in its life. That step matters on postwar Mopar products because a car can look correct at a glance yet still carry a later wheel or a substitute size that is different from the intended fitment.

De Soto Custom & Deluxe tires are offered here in blackwall, narrow whitewall, and wide whitewall styles, depending on size. The 760-15 range includes both narrow and wide whitewall options along with blackwall-adjacent period styling through multiple brands, while 700-15 and 650-16 are also available in blackwall and wide whitewall versions. That gives a restorer room to match the car’s trim level, visual theme, and intended presentation.

For a period-minded postwar De Soto, sidewall style changes the car’s appearance almost as much as the wheel covers do. A blackwall usually gives a plainer, more utilitarian presentation, while a wide whitewall produces the fuller late-1940s look many owners want. If the goal is judged restoration, compare your choice against period photos, surviving originals, and marque-club guidance before settling on one whitewall width.

The listed De Soto Custom & Deluxe tires come from Firestone, BFGoodrich, STA, Coker Classic, Universal Vintage Tire, Goodyear, Garfield, Excelsior, Lester, and Tornel. Not every brand appears in every size, and the widest spread of brands is in 650-16, while 760-15 and 700-15 have more focused selections. Several of those brands also appear through distinct series that reflect passenger-car, military-style, or truck-style applications.

Brand choice on a collector De Soto often comes down to balancing appearance, intended use, and the kind of tread and sidewall treatment you want. If the car is restored as a passenger sedan, many owners gravitate toward the classic passenger-style bias-ply lines. If the car has a more commercial or utility-oriented use, the heavier-duty alternatives listed in some sizes may be relevant, but they should still match the correct wheel diameter and application.

De Soto Custom & Deluxe listings include multiple series such as Firestone Classic Bias Ply, Silvertown Classic Bias Ply, Coker Classic Bias Ply, Universal Classic Bias Ply, Super Cushion Deluxe, Deluxe All-Weather, Excelsior Bias Ply, Garfield Classic Bias Ply, Lester Classic Bias Ply, Transport, Traxion, Transport Highway, Super Traxion, Firestone Classic Military, STA Classic Military, Firestone Classic Truck, and Tornel Classic Truck. Those series separate into traditional passenger-car bias-ply lines and heavier-duty military or truck-oriented offerings. The difference is less about basic rim diameter and more about tread character, load emphasis, and the visual style appropriate to the vehicle’s intended use.

For most restored De Soto Custom & Deluxe passenger cars, the classic bias-ply passenger series will be the natural starting point because they suit the period look and expected driving character. The truck and military-style series can make sense only when the car’s use, wheel setup, or visual direction calls for them. Decide first whether you are preserving a passenger-car presentation or pursuing a more utility-focused specification, then narrow the options within the correct size.

A stored De Soto Custom & Deluxe should be kept in a cool, dry, dark space away from direct sunlight, ozone sources, and prolonged moisture. Tire pressure should be maintained at a reasonable level for storage, and the car should not sit for long periods with one corner heavily loaded or with a flat spot developing. Clean floors, tire cradles, or periodic rolling can help reduce casing stress on a low-use collector car.

Because De Soto Custom & Deluxe tires in this range are bias-ply designs, they can be more prone to temporary flat spotting after long idle periods than a modern radial. If the car will sit for months at a time, moving it slightly from time to time or supporting the weight properly can help preserve ride quality. Good storage practice protects both the tire investment and the way the car feels when it returns to the road.

Tires on a De Soto Custom & Deluxe should be inspected before each road outing and more thoroughly several times during the driving season. Look for pressure loss, sidewall cracking, tread separation, cuts, uneven wear, bead issues, and any signs that the tire has shifted on the rim. On a collector car, long periods of inactivity can age tires in ways that are not obvious from tread depth alone.

That inspection is especially important when the car alternates between show use and occasional road use. A De Soto that feels fine on one outing can still develop age-related issues between drives simply from time, storage conditions, or underinflation. Include the spare in the inspection routine as well, because it may be older than the road tires and can become the weak link when it is finally needed.

De Soto Custom & Deluxe tires should be replaced when age, cracking, casing distortion, impact damage, persistent air loss, or internal deterioration appears, even if the tread still looks usable. Collector-car tires often age out before they wear out because mileage is low and time is the bigger factor. The decision to replace should consider the tire’s calendar age, storage history, and how the car is actually used.

A bias-ply tire can retain an attractive appearance yet still be unsuitable for regular road use. Any De Soto Custom & Deluxe that has sat for years, has an uncertain tire history, or shows vibration and casing change should have the tires evaluated with caution before more than local use. Tread depth is only one part of the picture; age and structural condition matter more on a lightly driven postwar car.

The listed De Soto Custom & Deluxe fitments point to 700-15, 760-15, and 650-16 depending on year and configuration, and all available products here are bias-ply designs. Multiple passenger-car series and some heavier-duty series are represented, which means there was not just one universal replacement path across both years. For a 1948 car especially, the original fitment question depends on the exact wheel diameter and configuration of the individual vehicle.

The best restoration approach is to match the tire size to the car first, then match the sidewall style and series character to the level of authenticity you want. Original paperwork, period photos, and De Soto club references are the right tie-breakers when a 1948 car could plausibly fall into more than one listed size. That extra verification is worthwhile because tire stance and sidewall treatment strongly influence how authentic the finished car appears.

Correct tire fitment can absolutely affect how a De Soto Custom & Deluxe is judged and how seriously a restoration is taken. Judges and experienced collectors notice whether the tire size, rim diameter, sidewall treatment, and overall stance look appropriate for the model year and trim level. On a car where 1948 can use more than one size, getting the wheel diameter wrong can alter both appearance and credibility.

For a driver, a near-period look may be enough, but for a higher-level restoration the details matter. Whitewall width, blackwall versus whitewall choice, and the basic size family all contribute to the finished presentation. If the car is intended for marque judging or resale to a knowledgeable buyer, confirming the size against original references is one of the simplest ways to avoid an expensive visual mismatch.

De Soto Custom & Deluxe tires are available here in blackwall, narrow whitewall, and wide whitewall form, depending on size. That gives restorers flexibility, but the correct choice depends on the exact look being recreated and the trim level of the individual car. On a late-1940s American car, sidewall style is a major visual element, and wide whitewalls are often associated with a more upscale presentation than plain blackwalls.

The smartest restoration move is to compare the chosen sidewall style with period photographs, surviving unrestored examples, and owner literature for the specific De Soto Custom & Deluxe being rebuilt. A wide whitewall may look right on one finished car and too dressy on another if the wheel covers and trim level do not support it. Treat sidewall style as part of the whole restoration composition, not as an isolated tire decision.

A properly selected, correctly mounted, and well-maintained tire of the correct size can be appropriate for public-road use on a De Soto Custom & Deluxe, provided the rest of the car is equally sound. These listings are all bias-ply tires, so the driving feel will reflect period construction rather than modern radial behavior. Safety depends on more than the tire alone; wheel condition, alignment, brake performance, steering wear, and inflation all matter.

That means a road-ready De Soto should be approached as a complete system. Before regular use, confirm the wheel diameter, the condition of the rims, and the integrity of the suspension and steering components. A car that is only intended for local tours and occasional events can perform very differently from one expected to cover long highway distances, so match your driving plans to the limits of a postwar bias-ply setup.

Before driving a De Soto Custom & Deluxe, check tire pressure, visible sidewall condition, tread condition, valve stems, wheel security, and whether the tire size matches the wheel diameter fitted to the car. On this model, that wheel check matters because both 15-inch and 16-inch fitments appear in 1948. Also inspect the spare, because older collector-car spares are often overlooked until they are urgently needed.

Beyond the tires, make sure the brakes pull evenly, the steering does not wander excessively, and the car tracks straight at modest speed. A De Soto that has been sitting can reveal problems only once it starts moving, so the first miles after storage should be conservative. A careful pre-drive routine is often the difference between an enjoyable local outing and discovering preventable issues on the road.

A De Soto Custom & Deluxe fitted with period-style bias-ply tires should be driven at speeds appropriate to the tire type, the car’s mechanical condition, and the realities of late-1940s chassis design. Even when the tires are new production, they do not turn the car into a modern highway machine. Stable, moderate touring speeds that respect braking distance, steering response, and road crown are the sensible baseline.

The right approach is to build speed gradually only after the car proves stable and predictable. If the car is newly restored, newly purchased, or running on unfamiliar wheels and tires, begin with short local drives and reassess how it behaves. Collector cars reward a conservative pace, and a De Soto Custom & Deluxe on bias-ply tires is happiest when driven with the margin and mechanical sympathy its era deserves.