1960 Ford Mark III Tires

The 1960 Ford Mark III uses two primary tire sizes: 640-13 and 650-13. Both are bias-ply sizes designed for 13-inch rims, and the Mark III Zodiac is associated with both of them rather than one single size across every car in this model grouping.

That makes the first step a physical check of the wheels and the tire size already on the car. A Mark III that has been restored, re-wheeled, or converted at some point may not still wear the same setup it used earlier in its life, so confirming the present wheel width and clearance helps narrow the correct choice.

The primary tire sizes for the 1960 Ford Mark III both use a 13-inch rim diameter. That applies to 640-13 and 650-13, so the basic wheel diameter stays consistent even though the two tire sizes differ slightly in nominal section width.

Rim diameter is only part of the fitment picture, so it still helps to confirm wheel width before choosing a tire. The available products in these sizes are not all built around the same rim-width window, and that matters when selecting a bias-ply tire or comparing one of the radial-equivalent alternatives.

The 1960 Ford Mark III is associated with both 640-13 and 650-13, which means more than one primary size appears within this exact model coverage. In practical terms, that creates a narrow but important choice between two closely related 13-inch bias-ply fitments.

The right way to sort that out is to verify the actual wheel and tire setup on the individual car rather than assume one size applies automatically. Restorations, replacement wheels, and long ownership histories can all influence what is on the car now, and that affects both product selection and any move toward a radial equivalent.

Both 640-13 and 650-13 are primary bias-ply tire sizes for the 1960 Ford Mark III. They use the vintage numeric sizing system and preserve the traditional tire construction associated with this car's era and appearance.

That matters because choosing a bias-ply tire is usually about more than size alone. It also affects sidewall shape, period-style presentation, and how closely the finished car reflects a traditional 1960 setup, while a move to radial construction calls for checking wheel width, dimensions, and clearance rather than treating the change as automatic.

Radial equivalents for both 640-13 and 650-13 include 175R13, P175/75R13, P185/70R13, and 650R13. Those cover an 80-series metric radial, a 75-series P-metric radial, a 70-series P-metric radial, and a bias-look radial equivalent in a traditional-looking format.

Each of those options should be treated as a comparison point rather than an automatic replacement. The recommended rim-width range is 4 to 6 inches, and the right choice still depends on wheel width, vehicle clearance, and the look you want, especially if the goal is to keep the Mark III's proportions close to a period-style presentation.

A radial conversion on a 1960 Ford Mark III starts with confirming the actual wheel diameter and wheel width on the car, then comparing the intended radial equivalent with the present tire size. For both primary sizes, the radial-equivalent path includes 175R13, P175/75R13, P185/70R13, and 650R13.

Clearance through steering travel and suspension movement deserves just as much attention as the nominal size code. The car's stance, fender space, and overall appearance can change with construction and profile differences, so it helps to inspect the full setup carefully before moving away from a traditional 640-13 or 650-13 bias-ply arrangement.

Start with the basics: confirm whether the car is using 640-13 or 650-13, and verify that the wheel is a 13-inch rim with an appropriate width for the tire you are considering. Since both primary sizes are bias-ply fitments, construction choice is straightforward unless you are comparing radial equivalents separately.

After that, the decision shifts to appearance, brand, and the character of the available tire line. On this car, whitewall width is especially important because it changes the visual balance of a compact luxury sedan, and the difference between wide whitewall and narrow whitewall can be just as meaningful as the brand name on the sidewall.

The available sidewall styles for 1960 Ford Mark III tires include wide whitewall and narrow whitewall. The 640-13 offering uses a wide whitewall treatment, while the 650-13 choices include both wide whitewall and narrow whitewall options.

That gives the car owner a meaningful appearance decision even before brand enters the picture. A wide whitewall tends to emphasize a formal early-1960s look, while a narrow whitewall can create a slightly leaner presentation, so the best match depends on how the car is finished and whether the goal is a fuller period-style profile or a subtler whitewall treatment.

Tires for the 1960 Ford Mark III are available from BFGoodrich, Coker Classic, and US Royal. Those brands appear across the applicable 13-inch bias-ply sizes, with BFGoodrich represented in 640-13 and Coker Classic and US Royal represented in 650-13.

Brand is only one part of the decision, so it helps to compare each tire alongside its sidewall treatment, tire series, and rim-width specification. On this particular car, the visual difference between wide and narrow whitewalls may influence the final choice more strongly than the brand alone, especially on a restoration-oriented or show-focused sedan.

A period-style 1960 Ford Mark III usually starts with one of its primary bias-ply sizes, either 640-13 or 650-13, depending on the wheel and tire setup on the individual car. Staying with bias-ply construction preserves the traditional sizing format and the visual character most owners expect on a sedan of this era.

From there, sidewall treatment becomes a major styling decision. Wide whitewall and narrow whitewall options can both suit a restoration-oriented Mark III, but the right choice depends on the look you want and any historical references tied to the specific car, since appearance preference should not be confused with a blanket originality claim.

Tire construction has a noticeable effect on the appearance of a restored 1960 Ford Mark III because bias-ply and radial tires do not present the same overall visual character. The primary 640-13 and 650-13 fitments are bias-ply sizes, which maintain the traditional format associated with the car's period.

A move to radial construction can still be worthwhile for some owners, especially with a bias-look radial option available, but it changes the selection process from pure restoration presentation to a balance of looks and road use. That is why wheel setup, sidewall style, and the finished stance of the car should all be considered together before making the change.

Yes, modifications can affect tire fitment on a 1960 Ford Mark III even when the car still uses a 13-inch wheel. Changes such as aftermarket wheels, altered wheel width, suspension work, ride-height changes, or body repairs can all influence how a 640-13, 650-13, or radial-equivalent alternative sits in the car.

That is why a quick size check on the sidewall is not always enough. A car that has been lowered, widened at the wheel, or rebuilt with different components should be inspected for steering clearance, fender space, and suspension travel before settling on either of the original-style bias-ply sizes or a modern radial equivalent.

Before driving a 1960 Ford Mark III on new tires, inspect the wheels for correct diameter and width, confirm that the tires are seated properly, and check inflation carefully. It also helps to look over the suspension, steering components, and brake hardware so the new tires are not being asked to compensate for unrelated mechanical issues.

A short, cautious road test is a smart follow-up, especially on a collector car that may have spent long periods parked. During that first drive, pay attention to clearance while turning, any pull or vibration, and whether the car settles evenly on the new tires, since fresh rubber can reveal setup problems that were masked by older tires.

Collector-car tires in 640-13 or 650-13 size should be maintained with regular pressure checks, visual inspection of the sidewalls and tread, and periodic review for cracking, cuts, bulges, or persistent air loss. That matters even more on a lightly driven 1960 Ford Mark III, where tire aging can outpace normal tread wear.

Storage conditions deserve attention too, because heat, sunlight, and long periods of inactivity can shorten tire life on a seldom-used car. Keeping the Mark III clean, properly inflated, and checked before each driving season helps preserve both the bias-ply tire itself and the road manners expected from a well-kept collector sedan.