1956 Dodge Coronet Tires

A 1956 Dodge Coronet uses one of three bias-ply tire sizes: 670-15, 710-15, or 760-15. All three sizes are designed for 15-inch rims, but they do not apply across every Coronet configuration. The six-cylinder D 62-1 uses 670-15 or 710-15, while the eight-cylinder D 63-1 uses 710-15 or 760-15.

That means the right choice starts with the exact sub-model and the wheel setup currently on the car. A Coronet that has been restored, modified, or fitted with different wheels over the years may not still match its original-size pattern, so checking the mounted tire size and wheel width before ordering is a smart step.

The covered 1956 Dodge Coronet tire sizes all use a 15-inch rim diameter. That applies to 670-15, 710-15, and 760-15, so the wheel diameter stays consistent even though the tire widths vary by configuration. The main difference is not the rim diameter itself, but which tire size the specific Coronet sub-model uses.

Wheel diameter is only part of the fitment picture on a collector car. A 15-inch wheel can still vary in width, and that matters when comparing bias-ply tires or considering a radial equivalent. It also helps to confirm that the car has its intended wheels rather than later replacements before settling on a tire size.

The 1956 Dodge Coronet has more than one tire size because the covered sub-models do not share the same fitment range. The six-cylinder D 62-1 uses 670-15 or 710-15, while the eight-cylinder D 63-1 uses 710-15 or 760-15. That creates one shared middle size and one smaller or larger size depending on the engine grouping.

For a buyer, that means a quick size search is not enough unless the exact sub-model is already confirmed. The current wheels and tires on the car should also be checked, especially on older restorations where replacement wheels or long-ago tire changes may have altered what is mounted today.

On a 1956 Dodge Coronet, 710-15 is a primary bias-ply tire size. It belongs to the vintage numeric bias-ply sizing system and is one of the original-style 15-inch fitments used within the Coronet range. Radial choices do exist in equivalent sizes, but 710-15 itself refers to the bias-ply fitment, not a radial construction.

That distinction matters because a buyer may want either a traditional period-style presentation or a radial alternative with a different sizing format. Keeping the 710-15 bias-ply size preserves the original-style construction family, while converting calls for checking wheel width, tire dimensions, and vehicle clearance rather than assuming a one-step swap.

Radial equivalents for 710-15 include 205R15 as an 80-series metric radial, P215/75R15 as a 75-series P-metric radial, P225/70R15 as a 70-series P-metric radial, and 710R15 as a bias-look radial. These choices all stay with a 15-inch rim diameter while offering different radial sizing conventions and a traditional-looking option in the 710R15 format.

The useful next step is comparing the car's wheel width and overall space around the tire before making the change. The recommended rim-width range for these 710-15 equivalents is 6 to 8 inches, and that should be weighed against the actual wheels on the Coronet along with steering and fender clearance.

Start by matching the Coronet's primary bias-ply size to the correct radial equivalent family for that size. A 670-15, 710-15, or 760-15 Coronet can be evaluated against metric, P-metric, or bias-look radial alternatives, but the conversion should begin with the exact original-style size already tied to the car's sub-model and wheel setup.

After that, confirm the wheel diameter, wheel width, and available clearance at the fender, suspension, and steering points. Older cars are often wearing replacement wheels or altered ride heights, so it is worth checking the full setup in person before changing construction, especially when moving from a vintage bias-ply profile to a radial equivalent.

A 710-15 buyer should first confirm that this is the correct Coronet fitment, since the 1956 model range also uses 670-15 and 760-15. Once the size is confirmed, the meaningful decisions are brand, tire series, sidewall treatment, and whether the tire's rim-width specification matches the wheel already on the car.

The available 710-15 products include blackwall, narrow whitewall, and wide whitewall styles from brands such as BFGoodrich, Firestone, US Royal, Goodyear, and Universal Vintage Tire. That makes the choice as much about appearance and restoration direction as fitment, especially on a mid-1950s Dodge where sidewall style changes the car's visual character.

Sidewall choices for the 1956 Dodge Coronet include blackwall, narrow whitewall, and wide whitewall depending on the tire size selected. The broadest variety appears in 670-15 and 710-15, while 760-15 centers mainly on whitewall options with some narrow whitewall availability. These styles all stay within the vehicle's vintage bias-ply fitment family.

Choosing among them depends largely on the look you want from the car. Blackwalls give a plainer, more understated presentation, while narrow and wide whitewalls bring progressively more visual emphasis to the wheel opening. Matching the sidewall style to the car's trim level, restoration theme, and overall stance usually matters as much as the size itself.

The 1956 Dodge Coronet's tire sizes are available from several established vintage-tire brands, including Firestone, BFGoodrich, Goodyear, US Royal, Coker Classic, Universal Vintage Tire, Excelsior, Avon, and STA. Brand availability varies by size, with 670-15 offering the widest spread and 760-15 narrowing to a smaller group of period-style choices.

Brand selection should still begin with the correct tire size and construction for the car, not the brand name alone. Once the fitment is confirmed, comparing tire series, sidewall treatment, rim-width specifications, and load figures where stated gives a more useful basis for choosing the tire that best suits the Coronet's appearance and intended use.

For a period-style 1956 Dodge Coronet, the best starting point is the correct primary bias-ply size for the exact sub-model: 670-15, 710-15, or 760-15. Staying within that vintage numeric bias-ply family keeps the car aligned with the tire construction and profile style associated with mid-1950s American fitment rather than moving immediately into a modern radial format.

After the size is confirmed, appearance becomes the deciding factor. Blackwall, narrow whitewall, and wide whitewall versions can give the same Coronet a noticeably different stance and visual period feel. When exact originality matters, it is wise to compare the intended tire against marque references, restoration photos, or other vehicle-specific historical guidance.

Tire construction changes the way a restored 1956 Dodge Coronet presents itself, even when the wheel diameter stays at 15 inches. A bias-ply tire keeps the car in its original-style construction family and usually supports the traditional visual character buyers expect from a mid-1950s Mopar, while radial equivalents tend to shift the presentation toward a more modern look.

That does not make one construction universally right or wrong. A restoration-focused owner may prefer bias-ply for visual authenticity and period stance, while a driver-minded owner may want to explore a radial alternative. The key is choosing deliberately so the finished car reflects the intended balance of appearance, use, and wheel compatibility.

Yes, modifications can affect tire fitment on a 1956 Dodge Coronet even when the car still uses a 15-inch wheel. Aftermarket wheels, different wheel widths, suspension changes, altered ride height, brake conversions, or body work around the wheel openings can all change how a 670-15, 710-15, 760-15, or radial equivalent sits on the car.

A modified Coronet should be checked at full steering lock and through normal suspension movement before settling on a tire. It is also smart to confirm the actual wheel width rather than relying on memory or old paperwork, since vintage cars often accumulate parts changes over decades that affect fitment in ways not obvious at first glance.

Before driving a 1956 Dodge Coronet on new tires, inspect the wheels for damage, verify lug hardware condition, and make sure the mounted size matches the car's intended fitment. It also helps to check steering and suspension wear points, because loose components can affect how a fresh set of tires tracks and wears on an older vehicle.

Once the tires are installed, keep an eye on pressure, sidewall condition, and any early signs of rubbing or uneven contact. A short test drive followed by a second visual inspection is a sensible habit on a collector car, especially if the Coronet has sat for long periods or has recently had wheel or suspension work.

710-15 tires on a collector 1956 Dodge Coronet should be maintained with regular pressure checks, routine visual inspections, and attention to age-related condition rather than tread depth alone. Collector vehicles often see limited mileage, so sidewall cracking, weathering, flat spotting from long storage, and gradual air loss can become more important than miles driven.

Good storage habits also help preserve vintage tires. Keeping the Coronet away from prolonged sunlight, moisture, excess heat, and ozone sources such as running electric motors can reduce deterioration over time. Occasional movement of the car, along with periodic checks for cuts, bulges, or irregular wear, supports safer road use when driving season returns.