1948 Chrysler Royal & Windsor C38 Tires

The 1948 Chrysler Royal & Windsor C38 uses two primary tire sizes: 760-15 and 820-15. Both are vintage numeric bias-ply sizes designed for 15-inch rims, so the car does not have a modern metric or P-metric tire as its original-style fitment.

The practical question is not just whether the car is a Royal & Windsor C38, but which of those two sizes matches its present wheel and tire setup. A car that has been restored, re-wheeled, or changed over the years may not still be using the same size it once did, so checking the existing tires and wheel dimensions is the safest starting point.

Both primary tire sizes associated with the 1948 Chrysler Royal & Windsor C38 use a 15-inch rim diameter. That applies to 760-15 and 820-15, so the wheel diameter remains consistent even though more than one tire size is associated with the car.

Rim diameter is only one part of fitment, though it is the first thing to confirm. Wheel width still matters, especially when comparing the narrower 760-15 with the wider 820-15 or when considering a radial equivalent, so it helps to inspect the wheels themselves rather than relying only on the model name.

Both 760-15 and 820-15 are numeric bias-ply tire sizes. In this vintage format, the first number refers to nominal section width in inches with the decimal omitted, and the final number identifies the rim diameter, so 760-15 is about 7.60 inches wide and 820-15 is about 8.20 inches wide on a 15-inch rim.

That older sizing system matters because it does not read like a modern radial size such as 215R15 or P235/75R15. When replacing tires on a 1948 Chrysler, it helps to translate the vintage size correctly before comparing construction types, wheel compatibility, and the overall appearance you want from a blackwall or whitewall tire.

Both 760-15 and 820-15 are primary bias-ply tire sizes for the 1948 Chrysler Royal & Windsor C38. They are not modern radial size designations, and the product selections in these sizes center on traditional bias-ply construction.

That distinction matters because a buyer may be choosing between preserving the original-style driving character and appearance of a bias-ply tire or moving to a radial equivalent for different road manners. Either way, the car’s wheel width, tire clearance, and intended use should be confirmed before making a construction change.

For 760-15, the available radial equivalents are 215R15, P225/75R15, P235/70R15, and 760R15. For 820-15, the available radial equivalents are 235R15, P235/75R15, P255/70R15, and 820R15, covering 80-series metric, 75-series P-metric, 70-series P-metric, and bias-look radial formats.

Those equivalents give the 1948 Chrysler owner several ways to compare radial sizing, but they should not be treated as automatic replacements. The recommended rim-width range attached to these equivalents is 6-8 inches, and overall wheel compatibility plus fender and steering clearance still need to be checked on the actual car.

Start by identifying whether the car is presently using 760-15 or 820-15, then compare the appropriate radial-equivalent options for that specific size. The wheel still needs the correct 15-inch diameter, and the recommended rim-width range associated with the equivalents is 6-8 inches.

A construction change can also affect how the car sits and how much room the tires have near the fenders and steering components. It is smart to inspect wheel width, suspension condition, and clearance at full turn before changing over, especially on a postwar Chrysler that may have seen wheel or suspension changes during restoration.

The first decision is choosing the correct primary size for the car’s present wheel setup, since both 760-15 and 820-15 are associated with the 1948 Chrysler Royal & Windsor C38. After that, the main factors are bias-ply construction, sidewall style, brand, tire series, and whether the wheel dimensions match the tire’s rim-width requirements.

A restoration-oriented car may point toward a traditional bias-ply with a whitewall treatment that suits the period look, while a driver may also compare the available radial equivalents separately. The best approach is to match the tire to the car’s current wheels, visual goals, and planned road use rather than choosing by appearance alone.

The available sidewall styles for 1948 Chrysler Royal & Windsor C38 tires include blackwall, narrow whitewall, and wide whitewall, depending on the size and product line. The 760-15 selection leans heavily toward whitewall options, while 820-15 includes blackwall choices as well as several whitewall widths.

That makes sidewall selection an important part of the final decision, especially on a late-1940s Chrysler where the tire has a strong effect on the car’s stance and presentation. A buyer should still begin with the correct tire size and wheel fitment, then use sidewall style to fine-tune the car’s period-style look.

Tires for the 1948 Chrysler Royal & Windsor C38 are available from BFGoodrich, Coker Classic, Universal Vintage Tire, Goodyear, Firestone, US Royal, and Avon. Brand availability varies by size, so the 760-15 and 820-15 selections are not identical in depth or sidewall treatment.

That means brand choice should come after size confirmation, not before it. Once the correct size is settled, the buyer can compare the tire series each brand offers, whether the look is blackwall or whitewall, and any meaningful specification details such as rim-width guidance or load figures that may matter for the intended use.

A period-style 1948 Chrysler Royal & Windsor C38 usually starts with one of its original-format bias-ply sizes, either 760-15 or 820-15, depending on the car’s wheel setup. From there, the visual direction often comes down to blackwall, narrow whitewall, or wide whitewall, all of which can change the character of the car significantly.

Bias-ply construction generally preserves the most traditional presentation, especially on a full-size postwar Chrysler. When exact originality matters, the smartest next step is to compare the chosen size and sidewall treatment against marque references, photos, or restoration records so the finished car reflects the era you are trying to capture.

On a restored 1948 Chrysler Royal & Windsor C38, tire construction affects more than ride feel. A bias-ply tire keeps the vintage sizing format and traditional look associated with late-1940s American cars, while a radial equivalent can change the visual impression even when chosen carefully in a comparable size family.

That is why many restoration-minded owners decide on appearance first, then evaluate whether they want to preserve that bias-ply presentation or accept a more modern look for road use. Sidewall style also plays a major role, so construction and whitewall treatment usually need to be considered together rather than as separate decisions.

Yes, modifications can affect tire fitment on a 1948 Chrysler Royal & Windsor C38 even when the tire size itself is one of the correct period sizes. Changes such as aftermarket wheels, different wheel widths, suspension work, ride-height changes, or body repairs can all influence how a 760-15 or 820-15 sits on the car.

That becomes especially important when comparing the narrower and wider primary sizes or when considering a radial equivalent. A Chrysler that has been altered over the years should be checked for wheel diameter, wheel width, turning clearance, and fender room before new tires are chosen simply by the vehicle year and model name.

Before driving a 1948 Chrysler Royal & Windsor C38 on new tires, inspect the wheels for the correct 15-inch diameter and suitable width, then confirm that the tires seat properly and clear the suspension and bodywork. It also makes sense to check valve stems, wheel condition, lug torque, and inflation pressure before road use.

A postwar collector car should also have its steering and suspension looked over, because worn components can make a fresh set of tires feel worse rather than better. A short, careful shakedown drive is a smart final step so any rubbing, vibration, or pull can be caught early and corrected before longer trips.

Collector-car tires on a 1948 Chrysler Royal & Windsor C38 should be maintained with regular pressure checks, visual inspections, and periodic review for cracking, bulges, cuts, uneven wear, or slow air loss. That applies whether the car is running 760-15 or 820-15, because long storage periods can age tires even when tread wear remains light.

Storage conditions matter almost as much as mileage on a vintage Chrysler. Keeping the car away from prolonged sunlight, moisture, and ozone sources helps preserve the tires, and it is wise to inspect them before every meaningful drive rather than assuming a low-use collector car is ready for the road just because it was parked safely.