1959 Ford Mark III Tires

The 1959 Ford Mark III uses two primary tire sizes: 640-13 and 650-13. Both are vintage numeric bias-ply sizes built for 13-inch rims, and both appear in fitment for this model. The covered Zodiac sub-model can also use these same sizes, so the main fitment question is which of the two sizes matches the car's existing setup.

A quick check of the tires already on the car and the actual wheel width is the best starting point before choosing between them. Since both sizes share the same rim diameter, the decision usually comes down to preserving the current fitment, matching the desired visual stance, and making sure any replacement clears the fenders and suspension.

The 1959 Ford Mark III uses a 13-inch rim with its primary tire fitments. Both 640-13 and 650-13 are built around that same 13-inch wheel diameter, so the rim diameter itself does not change between the two listed tire sizes. That makes wheel confirmation simpler than on vehicles that used multiple diameters.

Rim diameter is only one part of the fitment picture, so wheel width still matters before selecting a tire. Some available 640-13 and 650-13 products are intended for slightly different width ranges, and that can affect how the tire sits on the wheel. A car that has been changed from its original wheels also deserves a closer look.

Yes. The 1959 Ford Mark III Zodiac is associated with the same two primary tire sizes used at the model level: 640-13 and 650-13. Both are bias-ply fitments for 13-inch rims, so the sub-model does not introduce a different wheel diameter or a separate construction type in this fitment range.

That consistency makes the buying process easier, but the exact tire on the car should still be verified before ordering. A Zodiac that already wears one of these sizes may simply need a matching replacement, while a car that has been altered over the years may call for a closer check of wheel width, clearance, and overall appearance.

For the 1959 Ford Mark III, 640-13 is a bias-ply tire size. It is a vintage numeric fitment used on a 13-inch rim, and it reflects the original construction style associated with this car's primary fitment range. Buyers looking at 640-13 are starting from a traditional bias-ply setup rather than a modern radial format.

That matters because bias-ply and radial tires differ in both appearance and road feel, and the choice can shape the character of the car. A buyer staying with 640-13 bias-ply fitment may focus on period-style presentation, while anyone considering a radial alternative should compare wheel width, dimensions, and clearance before changing construction.

Radial equivalents for 640-13 include 175R13, P175/75R13, P185/70R13, and 650R13. Those options cover an 80-series metric radial, a 75-series P-metric radial, a 70-series P-metric radial, and a bias-look radial. Each one provides a different sizing convention while staying in the same general replacement conversation for a 13-inch wheel.

A 4-6 inch rim-width range is associated with these radial-equivalent options, so wheel width should be part of the decision. It is also smart to compare the actual tire dimensions, steering travel, and fender clearance before moving away from the original bias-ply format. An equivalent is a useful alternative, but not an automatic interchange.

Yes, a bias-look radial equivalent is available for the 1959 Ford Mark III in the form of 650R13. That size is presented as a radial alternative for both 640-13 and 650-13 fitments, giving owners an option that keeps a more traditional visual impression than a modern P-metric sidewall usually provides.

A bias-look radial can appeal to owners who want a vintage appearance without staying strictly with bias-ply construction. Even so, it should still be checked against the car's wheel width, body clearance, and overall setup before conversion. Tire age, suspension condition, and any prior wheel changes can all affect how suitable the switch will be.

Start with the actual size already fitted to the car, since the 1959 Ford Mark III uses both 640-13 and 650-13 as primary bias-ply fitments. From there, compare wheel width, sidewall style, and whether the goal is a traditional bias-ply replacement or a radial-equivalent alternative. The right choice depends on the car's present setup as much as the catalog size.

Appearance is especially important on a late-1950s car, so whitewall width can change the overall presentation noticeably. It also helps to compare load figures and the intended rim-width range where product differences exist. A careful match between size, wheel, and visual style usually leads to a better result than choosing by size code alone.

The available sidewall styles for 1959 Ford Mark III tires include wide whitewall and narrow whitewall treatments. In the sizes offered for this car, 640-13 appears with a wide whitewall option, while 650-13 is available with both wide whitewall and narrow whitewall presentations. That gives owners a meaningful visual choice even within the correct vintage fitment range.

Sidewall style can dramatically affect the finished look of the car, especially on a design from the late 1950s. A wide whitewall tends to create a more formal period-style presence, while a narrow whitewall gives a subtler appearance. Matching the sidewall treatment to the car's restoration direction often matters just as much as choosing the right size.

Tires for the 1959 Ford Mark III are available from BFGoodrich, Coker Classic, and US Royal. Those brands appear across the primary 13-inch bias-ply fitments used on this model, with product variation depending on size and sidewall treatment. The available series include Silvertown Classic Bias Ply, Coker Classic Bias Ply, and US Royal Classic Bias Ply.

Brand choice should be considered alongside the exact size, whitewall style, and wheel requirements rather than as a separate decision. One size may have fewer choices than the other, so availability by size can shape the final comparison. Looking at the full combination of fitment, appearance, and tire series usually tells more than the brand name alone.

For a period-style 1959 Ford Mark III, the natural starting point is one of its primary bias-ply sizes, either 640-13 or 650-13, depending on the car's setup. Bias-ply construction preserves the traditional tire format, and the available whitewall treatments help shape the car's overall presentation in a way that suits a late-1950s luxury car.

The final choice often comes down to how formal or restrained the finished car should look. A wide whitewall gives a stronger vintage visual statement, while a narrow whitewall reads a little cleaner. When strict originality matters, vehicle-specific historical references and marque guidance are worth checking before settling on a particular sidewall treatment.

Tire construction changes more than road feel on a restored 1959 Ford Mark III; it also changes how the car presents visually. A bias-ply tire keeps the traditional vintage format associated with the car's original era, while a modern radial often introduces a different sidewall character. That difference can be noticeable on a car with strong 1950s styling cues.

A buyer deciding between bias-ply and radial should think about whether the restoration is aiming for a more authentic period-style look or a more road-oriented setup. A bias-look radial can sit between those goals visually, but it still needs the same careful fitment review as any other alternative. Construction choice is part appearance decision, part use decision.

Yes, modifications can affect tire fitment on a 1959 Ford Mark III even when the tire size itself appears correct. Changes such as aftermarket wheels, different wheel widths, altered offset, suspension work, or ride-height adjustments can all influence how a 640-13, 650-13, or radial-equivalent tire sits and clears the car during normal driving and steering.

A car that has been changed over the years should be checked at the wheel opening and around the suspension before replacement tires are chosen. Clearance at full steering lock matters just as much as static appearance. Taking a few measurements first can prevent selecting a tire that looks right on paper but creates interference once installed.

Before driving a 1959 Ford Mark III on new tires, inspect the wheels, valve stems, and overall tire installation, then confirm that inflation pressure matches the tire being used. It is also smart to look over steering and suspension components, especially on a collector car that may have seen long storage or limited annual mileage.

A short, careful test drive is the best way to catch rubbing, pull, vibration, or unusual behavior early. After that first drive, recheck air pressure and look again for any clearance marks near the fenders or chassis. Regular inspection remains important even with new tires, because older collector vehicles can reveal setup issues once they return to the road.

Collector-car tires in 640-13 or 650-13 size should be maintained with regular pressure checks, visual inspection, and careful storage habits. Even when tread looks good, a low-use 1959 Ford Mark III can develop age-related tire issues such as sidewall cracking, flat spotting, or gradual air loss. Keeping the car clean and out of prolonged heat and sunlight also helps.

Periodic inspection matters more on a collector car than mileage alone might suggest. Looking for cuts, bulges, embedded debris, and uneven wear can reveal problems before a longer drive. It also helps to move the car occasionally and keep the suspension in good condition, since old shocks, springs, or alignment issues can shorten tire life noticeably.