The 1962 Ford Mark III belongs to the compact British Ford era, when crisp styling, tidy dimensions, and European road manners shaped the character of everyday touring cars. For owners restoring or maintaining one today, tire choice has a strong effect on both appearance and the way the car presents itself on a 13-inch wheel. This model uses bias-ply sizes 640-13 and 650-13, so the first step is confirming which of those two period-style fitments belongs on the car. Available choices include wide whitewall and narrow whitewall designs, and modern radial equivalents are also available for buyers comparing original-style construction with an alternative road-use setup.
Which Tire Size Is Right for The 1962 Ford Mark III
The 1962 Ford Mark III uses two primary tire sizes, 640-13 and 650-13, both in bias-ply construction on 13-inch rims. Because the same covered sub-model can appear with either size, the key step is confirming the exact wheel and existing fitment on the car before selecting a replacement. Once size is settled, the real choice becomes sidewall style, tire series, and whether to stay with bias-ply construction or evaluate a radial equivalent.
A 640-13 size uses the vintage numeric bias-ply system, where the 6.40 designation refers to the tire's nominal section width in inches and the 13 identifies the wheel diameter. On the 1962 Ford Mark III, this is a period-style bias-ply fitment for a 13-inch rim and suits owners who want the look and construction associated with the car's original era. Available 640-13 choices center on BFGoodrich in the Silvertown Classic Bias Ply series with a wide whitewall presentation. It is a useful size to confirm when maintaining an original-style stance and a traditional small-car appearance.
A 650-13 tire follows the same numeric bias-ply sizing system, with 6.50 indicating nominal section width and 13 identifying the wheel diameter. For the 1962 Ford Mark III, this size keeps the car in its proper vintage bias-ply category while opening up more visible product variation than 640-13. Choices include Coker Classic and US Royal offerings in Coker Classic Bias Ply and US Royal Classic Bias Ply series, with both wide whitewall and narrow whitewall sidewall treatments. This size deserves a closer look when appearance matters as much as simple replacement, especially on a restoration-oriented car.
Sub-model fitment is straightforward here, but the covered 1962 Ford Mark III Zodiac can appear with either of the two primary bias-ply sizes. Checking the car's existing wheel and tire setup matters before choosing between 640-13 and 650-13.
1
1962 Ford Mark III Zodiac
The 1962 Ford Mark III Zodiac uses 13-inch bias-ply tire fitments and may be found with either 640-13 or 650-13. That makes size confirmation especially important, followed by a choice between restoration-oriented whitewall styles or a radial-equivalent path if the car's wheel setup supports it.
Bias-Ply to Radial Tire Conversion for the 1962 Ford Mark III
For the original 640-13 and 650-13 tire sizes, four radial-equivalent options are available for each size. Those alternatives are 175R13 as an 80-series metric radial, P175/75R13 as a 75-series P-metric radial, P185/70R13 as a 70-series P-metric radial, and 650R13 as a bias-look radial equivalent. The choices vary by sizing convention and profile style, with 650R13 aimed at a more traditional visual presentation. A recommended rim-width range of 4 to 6 inches applies, and wheel diameter, wheel width, and vehicle clearance should be checked before making a change.
Modern Radial Equivalents
175R13
Equivalent 80-series Metric Radial (640-13)
P175/75R13
Equivalent P-metric 75-series Radial (640-13)
P185/70R13
Equivalent P-metric 70-series Radial (640-13)
650R13
Bias-look Radial Equivalent (640-13)
175R13
Equivalent 80-series Metric Radial (650-13)
P175/75R13
Equivalent P-metric 75-series Radial (650-13)
P185/70R13
Equivalent P-metric 70-series Radial (650-13)
650R13
Bias-look Radial Equivalent (650-13)
Important Considerations When Replacing Bias Ply With Radial
Compare overall diameter and section width carefully to ensure proper fit.
Verify recommended rim range (4-6 in) and load needs match your vehicle specifications.
Check fender clearance, steering clearance, and stance before installation.
Consider suspension condition and intended road use when choosing equivalents.
Important Fitment Notes
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 1962 Ford Mark III Tires for Sale
Available 1962 Ford Mark III tires cover 640-13 and 650-13 bias-ply fitments from BFGoodrich, Coker Classic, and US Royal. The main buying differences are tire series, wide whitewall versus narrow whitewall appearance, and the rim-width specifications attached to each size.
These FAQs focus on the tire sizes used on the 1962 Ford Mark III, how 13-inch fitment should be confirmed, what the available radial equivalents mean, and how to choose between period-style bias-ply appearance and alternative road-use options.
Tire Size & Fitment
What tire size fits a 1962 Ford Mark III?
The 1962 Ford Mark III uses two primary tire sizes: 640-13 and 650-13. Both are bias-ply sizes designed for 13-inch rims, so the car stays within the same general vintage fitment family even though there are two possible size choices.
The practical next step is confirming which size is actually on the car now and whether the wheel matches that setup. Since both sizes are associated with this model, measuring the wheel diameter and checking the existing tire marking helps prevent choosing a tire that changes the current fitment without intention.
What size rim does a 1962 Ford Mark III use?
The 1962 Ford Mark III uses a 13-inch rim with both of its primary tire sizes, 640-13 and 650-13. The tire size code itself ends in 13, and the available products for these fitments are also built around a 13-inch rim diameter.
Rim diameter should be verified before ordering because a vintage car may have had wheels changed over the years. Wheel width matters too, especially when comparing available tires, since the 640-13 and 650-13 products carry different rim-width ranges and should be matched to the wheel already on the car.
Why does the 1962 Ford Mark III have more than one tire size?
The 1962 Ford Mark III is associated with both 640-13 and 650-13, which means more than one period-size fitment is used on this model. Both sizes remain in the same bias-ply, 13-inch category, but they represent slightly different numeric width designations.
That means the best choice is not simply picking either size at random. Looking at the tire currently mounted, confirming wheel width, and checking how the car sits within the fender opening will help preserve the fitment already established, especially on a restored or long-kept collector car.
Bias-Ply & Radial Options
Is 640-13 a bias-ply or radial tire for the 1962 Ford Mark III?
For the 1962 Ford Mark III, 640-13 is a bias-ply tire size in the vintage numeric system. It is one of the primary period-style fitments used on the car and is tied to a 13-inch wheel rather than a modern radial sizing format.
That matters because a buyer deciding between original-style construction and a modern alternative should recognize that 640-13 itself is not a radial size. If a radial is being considered instead, the equivalent options should be checked against wheel width, overall setup, and clearance rather than treated as automatic substitutes.
What radial tire sizes are equivalent to 640-13?
Radial equivalents for 640-13 include 175R13 as an 80-series metric radial, P175/75R13 as a 75-series P-metric radial, P185/70R13 as a 70-series P-metric radial, and 650R13 as a bias-look radial. These options give several ways to move from a vintage bias-ply code into radial sizing.
Each equivalent follows a different sizing convention, so the decision is about more than simply choosing any radial that shares the same wheel diameter. A recommended rim-width range of 4 to 6 inches is associated with these alternatives, and the final selection should be checked against the wheel, suspension space, and intended appearance.
What should I check before converting my 1962 Ford Mark III from bias-ply to radial tires?
Start by confirming the car's present primary size, whether 640-13 or 650-13, and then compare the available radial equivalents for that exact fitment. For both sizes, the equivalent choices include 175R13, P175/75R13, P185/70R13, and 650R13, with a recommended rim-width range of 4 to 6 inches.
A conversion should also include a careful look at wheel width, wheel condition, fender clearance, steering clearance, and the car's suspension state. Bias-ply and radial tires do not present the same way on a vintage vehicle, so owners often balance road-use goals against the traditional look they want to preserve.
Choosing the Right Tire
What should I consider when choosing a 1962 Ford Mark III tire?
Start with the correct primary size, since the 1962 Ford Mark III uses either 640-13 or 650-13, both in bias-ply construction on a 13-inch rim. After that, the real selection points are wheel-width compatibility, sidewall appearance, available tire series, and whether the car is staying with a period-style bias-ply setup.
The choice often comes down to how the car will be used and how closely the owner wants to maintain a traditional presentation. A driver-focused car may prompt a look at radial equivalents, while a restoration-oriented car may stay with the original-style sizing system and a whitewall treatment that suits the vehicle's era.
What sidewall styles are available for 1962 Ford Mark III tires?
The available sidewall styles for 1962 Ford Mark III tires include wide whitewall and narrow whitewall designs. In the current product assortment, 640-13 appears with a wide whitewall, while 650-13 is offered in both wide whitewall and narrow whitewall versions.
That gives the owner a meaningful appearance choice even within the correct vintage size range. A wider whitewall creates a more formal period-style look, while a narrower whitewall can appear a bit cleaner and more restrained, so the best choice depends on how the car is being restored, displayed, or driven.
What brands offer tires for the 1962 Ford Mark III?
Tires for the 1962 Ford Mark III are available from BFGoodrich, Coker Classic, and US Royal. BFGoodrich appears in 640-13, while the 650-13 size is available from Coker Classic and US Royal across more than one sidewall treatment.
Brand is only one part of the decision, since the available products also differ by tire series, whitewall style, and rim-width specification. Comparing those details alongside the correct size helps keep the focus on proper fitment and the kind of presentation the car should have once the tires are mounted.
Restoration & Appearance
Which tire should I choose for a period-style 1962 Ford Mark III?
A period-style 1962 Ford Mark III starts with one of its correct bias-ply sizes, 640-13 or 650-13, on a 13-inch rim. Staying within those vintage numeric sizes preserves the car's era-appropriate tire profile and supports the traditional appearance most restoration-minded owners are trying to maintain.
After the size is confirmed, sidewall treatment becomes the main visual decision. Wide whitewall and narrow whitewall choices are available, and the right one depends on the exact look being pursued, so owners concerned with strict originality should compare their car against marque references, period photos, or restoration documentation.
How does tire construction affect the appearance of a restored 1962 Ford Mark III?
Tire construction has a noticeable effect on how a restored 1962 Ford Mark III looks, especially because the primary fitments are bias-ply sizes. A bias-ply tire keeps the car within its original-era sizing language and generally supports the kind of stance and visual character expected on an early 1960s British Ford.
A radial equivalent can be considered when road-use priorities point that direction, but it changes the selection conversation from pure period style to a balance of appearance and practicality. Owners who want the most traditional presentation usually begin with the correct bias-ply size and then refine the look through whitewall style.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1962 Ford Mark III?
Yes, modifications can affect tire fitment on a 1962 Ford Mark III even when the intended tire size is otherwise appropriate. Changes such as aftermarket wheels, altered wheel width, suspension work, lowering, or body adjustments can influence how a 640-13, 650-13, or radial equivalent sits in the wheel opening.
That is why the actual car should be checked before ordering, especially if its history is not fully known. Wheel diameter, wheel width, steering clearance, and fender space all matter, and those checks become even more important when moving away from the original-style bias-ply construction into a radial alternative.
What should I inspect before driving a 1962 Ford Mark III on new tires?
Before driving a 1962 Ford Mark III on new tires, inspect the wheels for damage or corrosion, confirm the tire size matches the intended fitment, and make sure the tires seat properly on the rim. It also helps to check valve stems, inflation pressure, and general clearance at the fender and steering components.
A short initial road test is a smart follow-up on a collector car, especially one that may have sat for long periods. Watching for rubbing, unusual pull, vibration, or air loss can reveal problems early, and a second inspection after the first drive helps confirm the setup is settling in as expected.
How should 640-13 or 650-13 tires on a collector 1962 Ford Mark III be maintained?
Collector-car tires in 640-13 or 650-13 should be maintained with regular pressure checks, visual inspection, and attention to age-related deterioration. Even if tread wear is minimal, a lightly used 1962 Ford Mark III can still develop sidewall cracking, flat spotting from storage, cuts, bulges, or slow air loss.
Storage habits matter almost as much as miles driven. Keeping the car away from prolonged sunlight, moisture, heat, and ozone sources helps preserve the tires, and periodic movement prevents one part of the casing from carrying weight in the same position for too long between drives.