1964 Ford Mark III Tires

The 1964 Ford Mark III uses two primary tire sizes: 640-13 and 650-13. Both are vintage numeric bias-ply sizes designed for 13-inch rims, so the car’s tire decision starts with confirming which of those two sizes belongs on the specific wheel and vehicle setup.

Because both sizes are associated with this model, the practical step is to verify the actual wheel width and the size already on the car before choosing a replacement. That helps narrow the decision to the correct fitment first, then lets you compare whitewall style, tire series, and whether a modern radial equivalent deserves consideration.

The primary tire fitments for the 1964 Ford Mark III are built around a 13-inch rim diameter. Both 640-13 and 650-13 use that same wheel diameter, so the first wheel-related concern is not diameter variation but making sure the wheel is actually a 13-inch wheel.

Wheel width still matters even when rim diameter is settled. Product fitments in these sizes span different width ranges, so it is smart to confirm the wheel width before selecting a tire, especially if the car has changed wheels over the years. That check becomes even more important when comparing a bias-ply replacement to a radial equivalent.

Both 640-13 and 650-13 are vintage numeric bias-ply sizes. The first number is the nominal tire width in inches, written without a decimal point, and the final number is the wheel diameter in inches. In plain terms, 640-13 is about a 6.40-inch nominal width and 650-13 is about a 6.50-inch nominal width.

That older sizing format matters because it does not read like a modern metric radial size. Anyone replacing worn tires on a 1964 Ford Mark III should avoid assuming that a modern-looking code is the same thing. The safest path is to confirm the original-style size first, then compare any radial equivalent by wheel compatibility, dimensions, and clearance.

Both 640-13 and 650-13 are bias-ply tire sizes for the 1964 Ford Mark III. They use a vintage numeric format and represent the car’s traditional primary fitment rather than a modern radial sizing convention.

That distinction matters because staying with bias-ply construction helps preserve a period-style look and keeps the sizing in its original format. A buyer thinking about a radial alternative should treat that as a separate decision, then check wheel width, overall tire dimensions, and clearance before making the change rather than assuming every 13-inch radial is automatically comparable.

Radial equivalents for both 640-13 and 650-13 include 175R13, P175/75R13, P185/70R13, and 650R13. In that group, 175R13 is an 80-series metric radial, P175/75R13 is a 75-series P-metric radial, P185/70R13 is a 70-series P-metric radial, and 650R13 is the bias-look radial alternative.

Those equivalents give a few different ways to approach a radial conversion without changing away from a 13-inch rim diameter. A 4-6 inch rim-width range is tied to these equivalent choices, but overall fitment still needs to be checked carefully. Tire dimensions, wheel compatibility, and fender or steering clearance should all be reviewed before settling on one radial format.

That depends on whether the priority is a traditional presentation or a move toward a modern radial alternative. The 1964 Ford Mark III’s primary tire sizes are bias-ply, so staying with 640-13 or 650-13 keeps the original-style construction and the vintage sizing format intact.

A radial can be considered through the available equivalent sizes, including a bias-look radial for a more traditional appearance. The better choice comes down to how the car is used, how important period-style construction is to the owner, and whether the wheel width and vehicle clearances support the alternative size under consideration.

Start with the correct primary size, since the 1964 Ford Mark III uses either 640-13 or 650-13, both in bias-ply construction on 13-inch rims. Once size is settled, the next factors are wheel-width compatibility, sidewall appearance, and whether the car is being kept in a more traditional bias-ply presentation or compared against radial equivalents.

Product differences matter most in 650-13, where there is more variety in brand and whitewall treatment. Buyers restoring a car’s vintage look may focus on narrow versus wide whitewall styling, while road-use buyers may spend more time evaluating whether to remain with bias-ply construction. Matching the tire to the car’s appearance and actual wheel setup is the key step.

The available sidewall styles for 1964 Ford Mark III tires include wide whitewall and narrow whitewall. In 640-13, the available option uses a wide whitewall, while 650-13 opens up both wide whitewall and narrow whitewall choices across the applicable classic bias-ply offerings.

That sidewall difference can noticeably change the car’s visual character even when the tire size remains correct. A wide whitewall tends to create a stronger mid-century look, while a narrow whitewall can feel a bit more restrained. Appearance should be balanced with correct size and wheel compatibility so the chosen style still supports proper fitment on the car.

Available brands for the 1964 Ford Mark III include BFGoodrich, Coker Classic, and US Royal. BFGoodrich appears in 640-13, while 650-13 is available through Coker Classic and US Royal, all within vintage-style bias-ply construction for 13-inch fitment.

Brand choice here is less about ranking one over another and more about selecting the combination of size, sidewall style, and tire series that matches the car. Comparing whitewall treatment, rim-width suitability, and the visual character of each classic bias-ply line usually gives a better result than choosing by brand name alone.

A period-style 1964 Ford Mark III usually starts with the primary bias-ply fitments, 640-13 or 650-13, rather than jumping straight to a modern metric radial. Those sizes preserve the vintage numbering system and the traditional construction style that suits a mid-1960s compact car presentation.

From there, the real restoration-oriented decision is often visual. The available choices include wide whitewall and narrow whitewall treatments, which can change the car’s overall look significantly. Anyone pursuing exact historical originality should compare the selected tire style against marque references, period photos, or other vehicle-specific documentation before finalizing the choice.

Tire construction changes the visual impression of a restored 1964 Ford Mark III as much as the size itself. A bias-ply tire keeps the car in its traditional sizing format and supports a more vintage presentation, while a modern radial equivalent can alter the look even when the wheel diameter remains the same.

That is why construction should be part of the restoration plan, not just a technical detail. A bias-look radial can bridge the gap for owners who want radial construction without moving too far from a traditional appearance. Whitewall width also plays a major role, so construction and sidewall style should be considered together rather than separately.

Yes, modifications can affect tire fitment on a 1964 Ford Mark III. Even though the primary sizes are 640-13 and 650-13 on 13-inch rims, changes such as aftermarket wheels, altered wheel width, suspension work, or body modifications can change how a tire sits and whether clearance remains acceptable.

That matters most when the car no longer retains its original wheel setup or when a radial equivalent is being considered. Tire choice should be checked against the actual wheel diameter and width on the car, then reviewed for steering travel, fender clearance, and suspension clearance before regular road use begins.

Before driving a 1964 Ford Mark III on new tires, inspect the wheels for the correct 13-inch diameter and suitable width, then confirm proper inflation and bead seating. It is also wise to look over the suspension, steering components, and alignment condition so the new tires are not immediately compromised by worn mechanical parts.

A short test drive should include attention to rubbing, pulling, vibration, and any contact under full steering lock. Collector cars that sit for long periods can hide issues that only appear once they are moving again. A final walkaround for sidewall clearance and air retention helps confirm that the tire and wheel package is ready for normal use.

Collector-car tires in 640-13 or 650-13 sizing should be maintained with regular pressure checks, visual inspection, and careful storage habits. A 1964 Ford Mark III that sees only occasional use can still develop age-related problems such as sidewall cracking, flat spotting, air loss, or damage that is easy to miss between drives.

Routine inspection should include tread condition, cuts, bulges, and any signs of uneven wear that could point to alignment or suspension issues. Storage away from prolonged sunlight, heat, moisture, and ozone sources helps preserve the tire over time. Even low-mileage collector tires deserve periodic evaluation before road use, especially before a longer trip.