1957 Studebaker Tire Fitment Guide

1957 Studebaker vehicles use three sizes: 640-15, 670-15, and 710-15. The 57G uses 640-15, while 670-15 fits the 57H, Commander, and Wagons. The 710-15 size fits the 57H, 57H-K, 57H-Y, Commander, and Wagons. All three sizes mount on 15-inch rims, and the listed rim-width ranges span 4.00 to 6.00 inches depending on the specific size and tire chosen.

That means the first fitment question is your exact model, not simply whether the car is a 1957 Studebaker. A 57G owner is on a different path than a Commander or wagon owner, and some models overlap between 670-15 and 710-15. Before choosing a tire, compare the wheel you have on the car against the rim-width range shown for the product you want, especially if the car has had wheels changed during restoration.

On a 1957 Studebaker tire, 640-15 is a numeric bias-ply size. The 640 portion is the old-style nominal section-width code, and the 15 identifies the wheel diameter in inches. In the available 1957 Studebaker fitments, 640-15 is used only on the 57G and is offered in bias-ply construction with whitewall variations including both narrow and wider treatments.

Numeric sizes can look unfamiliar if you are used to modern metric radials, but they are correct for many 1950s American applications. What matters in practice is matching the exact size code and wheel diameter first, then deciding how the car should look when finished. If your 57G is being restored to a showroom-era appearance, the sidewall width you choose can make a noticeable difference in how authentic the car reads at a glance.

No, 1957 Studebaker models do not all use the same tire size. The lineup splits across three sizes, with 640-15 limited to the 57G, 670-15 shared by the 57H, Commander, and Wagons, and 710-15 used by the 57H, 57H-K, 57H-Y, Commander, and Wagons. Even though every listed size fits a 15-inch wheel, the tire size itself still changes by model.

That overlap can create confusion, especially on cars that have passed through multiple owners or restorations. Commander, wagon, and 57H owners should verify the car’s existing wheel and application before assuming the larger or smaller size is correct. If the car is being judged, model-correct fitment matters for authenticity; if it is being driven regularly, getting the right size and approved rim-width match matters just as much for proper setup.

1957 Studebaker tires are available in blackwall, wide whitewall, and narrow whitewall styles depending on size. The 640-15 range includes wide whitewall and narrow whitewall options, the 670-15 range includes blackwall and wide whitewall choices, and the 710-15 range includes blackwall and wide whitewall choices. All are bias-ply tires, so the sidewall decision is mainly about appearance rather than switching to a different construction type.

For a 1957 American car, whitewalls usually deliver the most era-correct visual impact, especially on upscale or fully restored presentations. Blackwalls can still make sense for a more restrained look, certain service-driven restorations, or owners who prefer less visual contrast. The important thing is to choose the sidewall style after you have the right size nailed down, because not every look is offered in every Studebaker size.

Several brands cover 1957 Studebaker sizes. The 640-15 offerings include BFGoodrich and Firestone. The 670-15 range expands to Firestone, US Royal, Coker Classic, and Universal Vintage Tire. The 710-15 options shown are BFGoodrich and Firestone. Across the lineup, all of these are bias-ply products aimed at vintage-style applications rather than modern metric replacements.

Brand choice usually comes down to the combination of sidewall look, rim-width compatibility, and the particular visual character you want on the car. Some owners focus on a familiar period American name, while others start with whichever series offers the exact whitewall width or blackwall presentation they prefer. Once the size is confirmed, compare the available brand options within that size instead of trying to choose a brand first.

In 670-15 for a 1957 Studebaker, the Coker Classic example shown is a wide whitewall bias-ply tire with a listed load capacity of 1550 pounds at 32 psi and a rim-width range of 5.00 to 6.00 inches. The Firestone examples include blackwall and classic whitewall bias-ply versions with a listed load capacity of 1450 pounds at 32 psi and a rim-width range of 4.50 to 5.00 inches.

That makes the comparison less about one being universally better and more about matching the tire to the wheel and visual goal. If your car has a wheel that falls in the narrower range, the Firestone fitment envelope shown may align more closely. If your wheel is wider and you want a broad whitewall presentation, the Coker Classic version may be the more appropriate direction. Always confirm the actual wheel width before making the final call.

Rim-width requirements for 1957 Studebaker tires vary by size and sometimes by product within the same size. The 640-15 offerings span 4.00 to 5.00 inches depending on brand, the 670-15 offerings shown span 4.50 to 6.00 inches, and the 710-15 offerings shown use 5.00 to 5.50 inches. All of the listed sizes use a 15-inch rim diameter, but width still matters for proper fit and shape.

This is one of the most important checks on a restored or long-owned Studebaker, because replacement wheels do not always match the original wheel exactly. A tire can share the right 15-inch diameter yet still be a poor candidate if the wheel is too narrow or too wide for that specific product. Measuring the wheel before purchase is the best way to avoid a mismatch in profile, appearance, and mounting suitability.

The listed 1957 Studebaker products are bias-ply tires, but no tube-type or tubeless marking appears consistently in the size descriptions shown here. That means the practical answer depends on the exact tire you choose and the wheel you plan to run. On collector cars from this era, tube use is often tied as much to the wheel design and condition as it is to the tire itself.

Before finalizing a setup, inspect whether the wheel is suitable for tubeless service and check the exact sidewall marking on the tire you intend to use. If the car still wears original-style rims, many owners also assess the valve-stem area, bead seat condition, and general wheel integrity at the same time. A marque specialist or experienced vintage tire installer can help confirm whether tubes are appropriate for your specific Studebaker combination.

All listed 1957 Studebaker tire sizes use a 15-inch wheel diameter, so there is shared diameter compatibility across the lineup. That does not mean every original 15-inch Studebaker wheel is automatically suitable for every size, because the approved rim-width ranges differ. The 640-15 tires start as narrow as 4.00 inches on some products, while 710-15 products shown are centered on 5.00 to 5.50 inch rims.

In practice, a wheel that works for one Studebaker model may not be the best match for another size, even though both are 15-inch applications. This matters most on cars with swapped wheels, mixed parts cars, or restorations built from multiple donors. Treat wheel diameter as only the first checkpoint. The final decision should include measuring wheel width and matching it to the approved range for the exact tire under consideration.

A 1957 Studebaker should be stored in a cool, dry, dark place away from direct sunlight, electric motors, welders, and other ozone sources that accelerate rubber aging. Keep the tires clean, avoid petroleum-based dressings, and maintain inflation so the casing is not left under-deflated for long periods. Because these are bias-ply applications, long static storage can also increase flat-spotting compared with later radial designs.

If the car will sit for months at a time, moving it periodically or supporting it in a way that reduces continuous load on one contact patch can help preserve ride quality. Storage habits matter just as much as tread depth on collector tires, especially for a 1950s car that may only see occasional use. A well-stored set often stays presentable and serviceable much longer than a neglected set with low miles.

Tires on a 1957 Studebaker usually age out before they wear out. A sound rule for collector use is to begin evaluating them closely once they reach the five- to seven-year range and to consider replacement as they approach roughly ten years, regardless of tread depth. The DOT date code on the tire sidewall is the key reference for age, and visible cracking, hardening, or deformation can shorten that timetable.

Mileage is only part of the story on a hobby car, because infrequent use can be hard on rubber in its own way. A Studebaker that is driven sparingly but stored poorly may need tires sooner than one that sees regular exercise and controlled indoor storage. If age and condition point in different directions, condition should guide the decision, with age serving as the firm backstop rather than an afterthought.

Tires on a 1957 Studebaker should be inspected before every drive and again before any extended outing. Look for sidewall cracking, cuts, bulges, irregular tread wear, and signs that the tire is losing pressure between uses. Collector cars also benefit from occasional close inspection of the wheel itself, especially around the bead seat and valve area where age-related issues can develop over time.

A quick walk-around catches most problems early, but a longer tour deserves a more thorough inspection that includes the spare. Old bias-ply tires can appear acceptable at a glance and still reveal age or stress once you look closely. If your setup uses tubes, pay extra attention to valve stems and any unexplained pressure loss, since tube and rim issues can show up there before any obvious tread problem appears.

A 1957 Studebaker Commander would have been a bias-ply application in period, which aligns with the available 670-15 and 710-15 fitments offered for the Commander here. The exact original size could vary within that model line, so both size and sidewall style deserve attention when restoring the car. Blackwall and whitewall appearances were both part of the period market, depending on how the car was ordered and presented.

For a serious restoration, the goal is to match the Commander’s exact original presentation as closely as possible in size, construction, and sidewall treatment. If the car’s history is unclear, period brochures, factory literature, and Studebaker marque clubs are the best way to narrow down what is correct for your specific body style and market configuration. Getting those details right has a big effect on the car’s finished stance and authenticity.

Correct tire fitment absolutely matters when showing a 1957 Studebaker. Judges and knowledgeable enthusiasts often notice whether the size, construction type, and sidewall style suit the model and the era. On a 1957 American car, an incorrect size can alter stance and proportion, while the wrong sidewall treatment can make an otherwise careful restoration look off immediately.

The level of scrutiny depends on the event, but authenticity-minded shows often reward cars that get these visual and technical cues right. A 57G wearing its proper size sends a different message than the same car wearing a broader size intended for another model group. If the car will be judged, confirm not only the tire code but also whether blackwall, narrow whitewall, or wide whitewall best matches the way that particular Studebaker would have appeared when new.

In 710-15 for the 1957 Studebaker, both BFGoodrich and Firestone are offered as bias-ply tires with a 15-inch rim diameter, a 5.00 to 5.50 inch rim-width range, and a listed load capacity of 1550 pounds at 32 psi on the examples shown. The visible distinction is mainly in sidewall presentation and product weight, with BFGoodrich available in blackwall and wide whitewall versions and Firestone shown in blackwall form.

For a restoration-minded owner, that means the decision may come down to the visual language of the finished car rather than a fundamental fitment difference. A wider whitewall can shift the character of the car toward a more upscale late-1950s appearance, while a blackwall keeps things more understated. Since the dimensional fit is similar in the examples shown, choosing between them is often a matter of authenticity goals and preferred styling.

The listed 1957 Studebaker tires are vintage-style bias-ply products, and no speed-rating letter is shown in the available size markings here. That means the tire choice should be considered alongside the broader realities of driving a 1957 automobile, including braking performance, steering feel, suspension condition, and how the car responds at modern traffic speeds. A properly maintained Studebaker on fresh, correctly fitted tires can be roadworthy, but highway use still calls for realistic expectations.

Bias-ply tires track and respond differently than modern radials, so the car should be driven in a way that respects its era and setup. Before using a 1957 Studebaker for sustained highway miles, make sure the tires are fresh, inflated properly, free of age cracking, and mounted on wheels that suit their approved dimensions. The driver’s confidence should come from the entire car being sorted, not from assuming the tire alone defines highway safety.

The available 1957 Studebaker tire listings include rated load-and-pressure figures rather than a single blanket inflation recommendation for the vehicle. The 640-15 products shown carry listed figures up to 1190 pounds at 32 psi, with one narrow whitewall example at 970 pounds at 32 psi. The 670-15 tires shown list 1450 pounds at 32 psi and 1550 pounds at 32 psi depending on product, while the 710-15 tires shown list 1550 pounds at 32 psi.

Those figures describe the tire’s rated load at a stated pressure, not necessarily the exact cold pressure your particular Studebaker should run. Vehicle-specific inflation should still be checked against factory recommendations and then cross-referenced with the tire maker’s guidance for the reproduction tire you choose. Avoid transferring a pressure assumption from one size to another, because the 640-15, 670-15, and 710-15 products do not all share the same load characteristics.

Before a longer drive in a 1957 Studebaker, inspect every tire for cracking, cuts, bulges, uneven wear, and stable cold pressure. Check that the spare is usable, that the valve stems are in sound condition, and that the wheel itself shows no obvious corrosion or damage where the tire seats. On a vintage car, tire condition should be evaluated as part of the whole-car pre-trip routine, not as a separate afterthought.

A longer outing also justifies looking beyond the tires to the brake system, cooling system, steering components, and wheel bearings, because any one of those can become the limiting factor on an older car. Still, tires deserve special attention because they carry the full weight of the vehicle and often age quietly between drives. If anything about the sidewalls or pressure retention looks questionable, solve that before adding miles to a 1957 Studebaker.