1968 Ford Shelby Mustang Tires

The primary tire size for a 1968 Ford Shelby Mustang is E70-15. This is a vintage alphanumeric bias-ply size used on a 15-inch rim, and it is the main fitment to start with when selecting replacement tires for the car.

That answer settles the size question, but not every E70-15 tire has the same look or intended character. Sidewall treatment, tire series, and wheel-width compatibility still matter, especially on a Shelby where stance and appearance are part of the ownership experience. It is also wise to confirm that the car still has the expected wheel setup before finalizing a tire choice.

The 1968 Ford Shelby Mustang uses a 15-inch rim with its primary E70-15 tire fitment. That 15-inch diameter is the key wheel measurement tied directly to the tire size, since the final number in E70-15 corresponds to the rim diameter.

Rim diameter should be confirmed before looking at any replacement tire, especially on older performance cars that may have had wheels changed over time. Diameter alone is not the whole story, though. Actual wheel width should also be checked against the tire being considered, because product options within E70-15 do not all share exactly the same rim-width specification.

Yes. The covered 1968 Ford Shelby Mustang GT uses the same primary E70-15 bias-ply tire size as the model fitment shown here. That keeps tire selection straightforward, with the focus staying on the right 15-inch size and the style of tire you want on the car.

Shared fitment does not mean every tire choice looks or behaves the same. The practical decision becomes whether you want a blackwall or raised white letter presentation, which brand or series best suits the car’s character, and whether the current wheel setup still matches the tire’s requirements. Those checks matter more than sub-model differences in this case.

E70-15 is a bias-ply tire for the 1968 Ford Shelby Mustang. That construction matches the vehicle’s primary fitment style and preserves the older alphanumeric sizing format associated with late-1960s American performance cars.

Keeping a bias-ply tire often appeals to owners who want a traditional period-style look and driving presentation. A construction change is possible only through an equivalent radial size, not by treating E70-15 itself as a radial code. Before changing constructions, check wheel width, tire dimensions, and clearance so the alternative suits the car’s actual setup rather than just the nominal rim diameter.

Radial equivalents for E70-15 include 185R15, P195/75R15, and P205/70R15. Those choices cover an 80-series metric radial, a P-metric 75-series radial, and a P-metric 70-series radial, giving the 1968 Ford Shelby Mustang owner several modern sizing formats to compare.

Each of those sizes should be treated as an alternative rather than an automatic substitute. The recommended rim-width range tied to these equivalents is 5 to 6 inches, so actual wheel width matters before conversion. Overall dimensions and clearance at the fenders and steering should also be reviewed, especially if the car has replacement wheels, altered ride height, or other changes from stock configuration.

Start by confirming the wheel diameter and the actual wheel width on the car, then compare that setup to the radial equivalent being considered for the original E70-15 fitment. The 1968 Ford Shelby Mustang has usable radial alternatives, but the correct choice depends on the wheel and vehicle combination actually in place.

Clearance should be checked at the front suspension, steering range, and outer fenders before a conversion is treated as workable. It also helps to think about your goal for the car. A restoration-oriented Shelby may call for staying with bias-ply construction, while a road-driven car may lead you to one of the metric or P-metric radial equivalents after those fitment checks are completed.

Start with the correct primary size, E70-15, and confirm that the car still uses a 15-inch wheel setup suited to that tire. From there, the main selection factors are bias-ply construction, sidewall appearance, brand, tire series, and wheel-width compatibility for the specific product you are considering.

A Shelby owner often wants the tire to support both the car’s stance and its intended use. An RWL tire creates a different visual impression than a blackwall, and one series may suit your appearance goals better than another even within the same size. Matching the tire to the wheel and to the character of the car is more useful than choosing by size alone.

E70-15 tires for the 1968 Ford Shelby Mustang are available with RWL and blackwall sidewall styles. RWL gives the car a raised white letter performance look, while blackwall offers a cleaner and more understated presentation in the same basic size.

The best choice depends on how you want the Shelby to read visually. Some owners prefer the bolder late-1960s muscle-car impression of raised white letters, while others want a simpler period-style look. Sidewall style does not change the need to confirm the tire’s wheel-width compatibility and construction, so appearance should be considered alongside fitment rather than instead of it.

Firestone and Goodyear both offer E70-15 tires for the 1968 Ford Shelby Mustang. Within those brands, the available options span several series, including Firestone Classic Bias Ply, Goodyear Speedway 350, Goodyear Speedway Wide Tread GT, and Goodyear Custom Wide Tread.

Brand choice is only one part of the decision. The more useful comparison is how each tire presents the car through its sidewall treatment, series character, and wheel-width specification. Looking at the Shelby’s current wheels and deciding whether the car is aimed toward restoration-style appearance or general collector road use will usually narrow the field more effectively than choosing by brand name alone.

For a period-style 1968 Ford Shelby Mustang, the natural starting point is the primary E70-15 bias-ply fitment. That keeps the car in its original-era sizing language and preserves the visual character associated with a late-1960s Shelby performance car on 15-inch wheels.

From there, the choice comes down to the presentation you want the car to have. RWL and blackwall options create noticeably different visual results, and Firestone and Goodyear series add further variation within the same size. If exact restoration accuracy matters, compare the tire you are considering with marque-specific documentation or period photos rather than assuming any current sidewall treatment is automatically correct.

Tire construction affects both the look and the stance of a restored 1968 Ford Shelby Mustang. Staying with the primary E70-15 bias-ply format retains the vintage alphanumeric sizing style and the traditional visual impression that many restoration-minded owners want on a car from this era.

A radial equivalent can change the way the tire is labeled and how it presents the car, even when it is chosen as an alternative to the same original fitment. That does not make a radial wrong, but it does make construction part of the appearance decision. Owners building a period-style Shelby usually weigh construction just as carefully as brand, series, and sidewall lettering.

Yes. Modifications can affect tire fitment on a 1968 Ford Shelby Mustang even when the nominal size remains E70-15 or one of its radial equivalents. Changes to wheel width, wheel design, ride height, suspension parts, or body clearance can all influence what works once the car is viewed as an actual physical package.

That is why a modified Shelby should be measured, not assumed. Check the wheel diameter and width first, then look at clearance through the steering range and at the fender edges. A tire that suits one 15-inch setup may not suit another if the car has been lowered, fitted with aftermarket wheels, or altered in a way that changes available space.

Before driving a 1968 Ford Shelby Mustang on new tires, inspect the wheels for condition and confirm the tire is seated properly and inflated correctly for the application. It is also smart to look over suspension and steering components so the new tires are not being asked to work with worn parts or poor alignment conditions.

A short inspection drive should include watching for rubbing, vibration, unusual pull, or any sign that the tire is too close to suspension or bodywork. On a collector car, recheck pressure after the first outing and keep an eye on the sidewalls and tread for any irregularity. Small issues are easier to correct early than after miles have been added.

E70-15 tires on a collector 1968 Ford Shelby Mustang should be inspected regularly for air loss, tread wear, sidewall cracking, cuts, bulges, and signs of aging. Collector cars often spend long periods parked, so tire condition can decline from time and storage even when mileage remains low.

Good maintenance also means protecting the car from prolonged heat, direct sunlight, excess moisture, and ozone-producing equipment during storage. Keep pressures checked, move the car periodically when practical, and look closely before longer drives after extended downtime. A Shelby that appears road-ready cosmetically still benefits from a careful tire inspection before being trusted at highway speed.