Nash Ambassador Tires

Nash Ambassador fitments in this group are 700-18 for 1933, 6.25-16 for 1937 through 1941, 650-16 for 1937 and 1941, 700-16 for 1937 through 1940, 710-15 for 1950 through 1952 and 1954 through 1956, 760-15 for 1956, and 800-14 for 1957. Those sizes correspond to 18-inch, 16-inch, 15-inch, and 14-inch wheel diameters depending on year and configuration.

That range means a Nash Ambassador owner should start with the exact year and then confirm the wheel diameter on the car before narrowing down to the correct size. If the car falls in a split year such as 1937 or 1956, use the year listing together with the actual wheel and any factory or restoration records to separate one fitment from another.

A 710-15 size on a Nash Ambassador is a numeric bias-ply designation. The 7.10 figure is the nominal section width in inches with the decimal omitted, and the 15 identifies a 15-inch rim diameter. Within this Nash Ambassador range, 710-15 is used on 1950 through 1952, 1954, 1955, and some 1956 cars.

That makes 710-15 the main early- to mid-1950s Nash Ambassador fitment in this group, but it is still not universal to every postwar car. A 1956 Nash Ambassador deserves extra attention because 760-15 is also listed that year, so the correct choice depends on the specific wheel-and-tire specification of the individual car.

The 1937 Nash Ambassador is listed with 6.25-16, 650-16, and 700-16. All three share the same 16-inch rim diameter, so the split is not a wheel-diameter change. It reflects different configurations within the 1937 Nash Ambassador line rather than one single tire size for every car built that year.

That matters because choosing only by model year can put the car on the wrong section width and visual profile even if the wheel diameter is correct. For a 1937 Nash Ambassador, check the existing wheel and tire combination, compare with original service information if available, and confirm the specific body style or trim before deciding among the three listed sizes.

Nash Ambassador rim diameter changes several times across the years shown here. The 1933 application uses 18-inch wheels, the 1937 through 1941 fitments use 16-inch wheels, the 1950 through 1956 fitments use 15-inch wheels, and the 1957 fitment uses 14-inch wheels. The tire size itself gives that wheel diameter in the final number of each numeric code.

Because the wheel diameter steps down across production, measuring the wheel on the actual car is the fastest way to avoid a basic fitment mistake. That check is especially important on restored Nash Ambassador cars, where wheels may have been changed years ago and the year on the title does not always guarantee the wheel-and-tire setup now on the car.

A 1956 Nash Ambassador can use either 710-15 or 760-15 in this fitment group. Both are 15-inch applications, but they are not the same size, and 760-15 is the larger of the two. That means the correct choice depends on the specific configuration of the individual 1956 Nash Ambassador rather than the year alone.

Start by confirming the existing wheel diameter and then compare the tire size on the car, any surviving factory paperwork, and restoration records. If the car is being returned to judged condition, match the sidewall style and overall profile to the car’s restoration goal as carefully as you match the nominal size.

Nash Ambassador tires in these sizes are available in blackwall, narrow whitewall, wide whitewall, and double whitewall styles, although not every size offers every sidewall treatment. Earlier prewar sizes lean heavily toward blackwall and wide whitewall choices, while later 1950s sizes add narrow whitewall options and maintain broad wide-whitewall coverage.

That gives a restorer room to match the tire to the intended presentation of the car rather than selecting only by size. A formal restoration usually benefits from checking period photos, factory literature, or marque-club guidance so the sidewall look suits the model year and trim as well as the wheel diameter and section width.

Brands represented across these Nash Ambassador sizes include Firestone, Lester, Excelsior, STA, BFGoodrich, Coker Classic, Garfield, Goodyear, Tornel, Avon, Universal Vintage Tire, and US Royal. Not every brand appears in every size, so the brand choices change depending on whether the car uses 18-inch, 16-inch, 15-inch, or 14-inch wheels.

That variety lets owners balance restoration style, tread appearance, and sidewall preference within the correct size family. Once the year and wheel diameter are confirmed, it becomes much easier to narrow the field to the brands that offer the right combination of period look, intended use, and sidewall treatment for a specific Nash Ambassador.

Nash Ambassador offerings here include series such as Firestone Balloon, Firestone Classic Bias Ply, Lester Classic Bias Ply, Silvertown Classic Bias Ply, Coker Classic Bias Ply, Deluxe All-Weather, Super Cushion, Super Cushion Deluxe, Custom Super Cushion, Comp H, and several military or truck-oriented patterns. The key difference is that some are passenger-car bias-ply lines styled for period road cars, while others are balloon-era or utility-oriented designs with very different visual character and intended use.

For a standard Nash Ambassador restoration, the passenger-car bias-ply series will usually be the most natural starting point because they align with the car’s original roadgoing role. Truck and military patterns can share a size with passenger applications, but owners should review the tread style and overall look carefully so the tire suits the car rather than merely fitting the wheel.

A Nash Ambassador should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, ozone sources, and prolonged contact with petroleum products. Clean floors, proper inflation, and a stable environment help preserve bias-ply casings and slow cosmetic sidewall aging. If the car sits for long periods, moving it occasionally can help reduce flat-spotting.

Collectors who leave a Nash Ambassador parked for months at a time often benefit from checking inflation before and after storage rather than assuming the tires have held pressure. Long idle periods are harder on old-style tires than steady moderate use, so simple storage discipline goes a long way toward preserving ride quality and appearance.

Tires on a Nash Ambassador should be inspected before every meaningful drive and more thoroughly several times a year, even if the car covers very little mileage. Look for sidewall cracking, tread separation, cuts, flat spotting, irregular wear, and changes in air retention. Bias-ply tires can age quietly, so low annual mileage does not eliminate the need for regular inspection.

A practical routine is to inspect the tires during seasonal service, before tours, and after any long period of storage. If the Nash Ambassador has been restored recently or has not seen road use in years, a careful initial inspection is especially worthwhile because tires can appear acceptable at a glance while still needing closer evaluation.

A Nash Ambassador tire should be replaced when age, cracking, casing deterioration, impact damage, or persistent air-loss issues appear, even if the tread still looks deep. Collector cars often age tires out long before they wear them out. Visual appearance alone is not enough to judge serviceability on a low-use classic.

That rule is even more important for a Nash Ambassador that spends most of its life in storage or on occasional drives, because time becomes the main enemy rather than mileage. If an older tire is being considered for continued use, have it evaluated by a specialist who understands vintage construction and can assess the casing, bead area, and sidewalls beyond a simple tread check.

The Nash Ambassador used several size families across the years covered here, including 700-18, multiple 16-inch prewar sizes, 710-15 and 760-15 in the 1950s, and 800-14 by 1957. Available series include passenger-car bias-ply lines as well as balloon-era and utility-style offerings. That means the correct original-style tire depends heavily on year and specific configuration rather than one universal answer for every Nash Ambassador.

For an authenticity-driven restoration, the best approach is to match the year, wheel diameter, and sidewall treatment first, then compare tread style and brand family to factory literature or marque-club references. A Nash Ambassador restored for touring may accept a broader range of period-looking options than one being prepared for strict judging.

Correct tire fitment can absolutely affect how a Nash Ambassador is judged and how convincing the restoration appears. Size, wheel diameter, sidewall style, and overall profile all contribute to the car’s stance and period character. An otherwise excellent Nash Ambassador can look visibly off if the tire size is too wide, too short, or paired with the wrong whitewall treatment.

For owners concerned with value or formal judging, tire choice should be treated as part of the restoration rather than an afterthought. Comparing the car against period photos, factory material, and marque-club standards will usually do more for authenticity than simply choosing the most readily recognized brand in the nearest available size.

Correct sidewall style for a Nash Ambassador restoration depends on the year and the character of the individual car, not just the tire diameter. The available choices here include blackwall, narrow whitewall, wide whitewall, and even double whitewall in the 700-18 size. Earlier cars generally suit blackwall or fuller whitewall presentations, while the later 1950s fitments open the door to narrower whitewall treatments.

That makes sidewall selection a visual authenticity decision as much as a fitment decision. If the goal is a factory-correct Nash Ambassador, compare the intended finish against period advertising, surviving original cars, and club guidance so the whitewall width and style fit the era instead of reflecting a later restoration trend.

A properly selected, properly mounted, and well-maintained bias-ply tire can be suitable for public-road use on a Nash Ambassador within the normal limits of a vintage car. The key is matching the exact size and wheel diameter to the car, maintaining correct inflation, and keeping the rest of the chassis in sound condition. A vintage Nash Ambassador asks more from the owner than a modern car does.

Road safety depends on the whole package, not the tire alone. Before regular use, make sure the Nash Ambassador’s steering, brakes, suspension, and wheel condition are as carefully evaluated as the tires themselves, because a correct-looking tire cannot compensate for worn mechanical systems or wheels that no longer match the intended fitment.

Before driving a Nash Ambassador, check tire pressure, visible sidewall condition, tread condition, valve stems, and any signs of cuts, bulges, or impact damage. Confirm that all four tires are the intended size for the car and that the wheel diameter matches the tire size code. On a collector car, even a short drive deserves a quick walk-around inspection.

That routine is especially useful on a Nash Ambassador that is driven occasionally rather than weekly, because storage can hide pressure loss and create flat spotting. If the car has recently changed hands or been brought out of long-term storage, a more thorough mechanical and wheel inspection is a wise step before putting meaningful road miles on it.

A Nash Ambassador on vintage-style bias-ply tires should be driven at moderate, mechanically sympathetic speeds that respect the car’s era, condition, and chassis design. The appropriate pace is not determined by tread depth alone. Tire age, wheel condition, alignment, brake performance, and the overall state of the suspension all influence how confidently the car should be used on the road.

In practical terms, a Nash Ambassador is happiest when driven smoothly rather than pushed to modern traffic expectations. Owners should build speed gradually after any restoration or long storage period, pay close attention to vibration or wandering, and remember that a well-sorted vintage car still benefits from more conservative road use than a modern radial-equipped sedan.