American Motors Concord Tires

American Motors Concord uses five sizes across the 1978 to 1983 production span: C78-14 for 1978, D78-14 for 1978 through 1980, DR78-14 for 1978, 195/75R14 for 1979 through 1983, and 205/70R14 for 1981 through 1983. Every listed size uses a 14-inch rim, but the format changes from alphanumeric bias-ply and alphanumeric radial codes in the earlier years to metric radial sizing in the later years.

The practical question is not just wheel diameter, but which size system your specific American Motors Concord was built around or currently carries. A 1978 car is the most likely to require careful checking because three sizes are listed for that year, while 1981 through 1983 cars may still have either of two metric radial sizes depending on configuration.

The 1978 American Motors Concord has C78-14, D78-14, and DR78-14 listed because that first model year straddles two tire conventions. Two of those sizes are alphanumeric bias-ply formats, while DR78-14 is an alphanumeric radial format. The split is not a wheel-diameter change, since all three use 14-inch rims, but a configuration and construction difference within the same model year.

That means year alone is not enough to choose a tire for a 1978 American Motors Concord. Check the size marking on the existing tire, compare it with the wheel and period service information for the car, and decide whether the goal is to preserve the original style of fitment or match a later radial conversion already on the vehicle.

Every tire size listed for the American Motors Concord uses a 14-inch rim. That includes the early alphanumeric sizes C78-14, D78-14, and DR78-14 as well as the later metric radial sizes 195/75R14 and 205/70R14. The key change over the years is the tire sizing system and construction type, not the wheel diameter itself.

Even with a constant 14-inch wheel, the correct tire still depends on the exact size the car requires. Width, profile, and construction all vary among the listed options, so measure and verify what is on the car now rather than assuming any 14-inch tire from the list is automatically the right choice.

D78-14 is an older alphanumeric tire size used on American Motors Concord applications from 1978 through 1980. The D is the width class, the 78 is the series designation, and the 14 is the rim diameter in inches. Because there is no R in the code, D78-14 is a bias-ply format rather than a radial one.

That matters because a D78-14 American Motors Concord setup should not be treated as identical to a 195/75R14 or 205/70R14 metric radial just because the wheel diameter matches. If your car still carries alphanumeric tires, preserve that reference point while you compare appearance, stance, and intended road use.

American Motors Concord listings include both older bias-ply alphanumeric sizes and later radial sizes, so the right answer depends on the year and the way the car is configured. A 1978 American Motors Concord may call for C78-14 or D78-14 in bias-ply form or DR78-14 in radial form, while later years move into metric radial sizes such as 195/75R14 and 205/70R14.

Bias-ply tires preserve a more period-correct early look and feel, while radial tires generally align better with later Concord road manners and modern driving expectations. The best approach is to decide whether authenticity or later-road usability is the priority, then match the tire type to the exact size and setup the car already uses.

Yes, radial tires can change how an American Motors Concord feels compared with an older bias-ply setup. The American Motors Concord spans a period when the industry was moving from alphanumeric bias-ply sizing into radial construction, and the listed radial sizes include both DR78-14 and later metric radials. That means steering response, ride character, and overall road feel may differ from an earlier bias-ply-equipped car.

For a driver-focused American Motors Concord, radial tires often make the car feel more familiar to modern motorists, especially on later examples built around metric radials. For a restoration-minded car, the change in appearance and driving character may matter as much as the fitment itself, so choose with the car’s intended use in mind.

Mixing crossply and radial tires on an American Motors Concord is not a good practice. The listed sizes show that AMC used both construction types during the Concord years, but they represent different tire behaviors rather than interchangeable variations of the same thing. A car fitted with bias-ply tires should remain consistent, and a car fitted with radials should remain consistent as well.

If your American Motors Concord currently has a mixed set from different eras of maintenance, treat that as a signal to step back and choose a matched approach. Establish the correct size for the car first, then keep the same construction type across the full set so the handling balance stays predictable.

A 1978 American Motors Concord can use C78-14, D78-14, or DR78-14, so the correct size has to be confirmed on the individual car. All three are 14-inch fitments, but they represent different width classes and, in the case of DR78-14, a radial construction. That makes 1978 the year that requires the most careful verification before any tire choice is made.

Start with the tire size already on the car if it has been preserved, then compare that with the wheel, factory placard, and period literature for the exact configuration. If the car has changed hands or been restored over time, use the existing setup only as a clue and check whether the goal is originality or a later-service replacement size.

American Motors Concord tire offerings in the listed radial sizes include wide whitewall, narrow whitewall, raised white letter, redline, dual redline, and blackwall sidewall styles. The 195/75R14 products center on whitewall choices, while 205/70R14 adds performance-oriented looks such as raised white letters along with redline and blackwall options. Those differences can noticeably change the car’s appearance even when the wheel diameter stays the same.

Sidewall choice should follow the personality of the specific American Motors Concord you are preserving or building. A more formal or factory-style car often looks right on whitewalls, while a sportier late-period presentation may lean toward blackwall, redline, or raised white letter treatment.

The listed American Motors Concord radial products come from Coker Classic, Tornel, Maxxis, Travelstar, BFGoodrich, and Michelin. Coker Classic appears in more than one 195/75R14 offering, BFGoodrich appears in several 205/70R14 styles, and Michelin is represented by the XWX in 205/70R14. Brand selection is tied not only to size, but also to the sidewall style and tire series you want.

That means an American Motors Concord owner should narrow the decision in stages: first by correct size, then by construction type, then by visual style. Once those basics are settled, the brand choice becomes much easier because the remaining options will reflect the look and use case you actually want for the car.

American Motors Concord radial products are offered in several series, including Star Series, Tornel Classic, Classic Whitewall MA-1, Coker Classic Radial, UN106, Radial T/A, Silvertown Radial, and Michelin XWX. Those series differ primarily in appearance and intended character: some focus on period-style whitewalls, some on sportier raised white letter or redline presentation, and some on a more European-style blackwall radial look.

For an American Motors Concord, the practical way to use series information is to decide what role the tire plays in the finished car. A formal sedan, a preservation car, and a sport-oriented build can all use the same basic wheel diameter while looking very different once the sidewall styling and series family are chosen.

An American Motors Concord should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, ozone sources, and long exposure to petroleum products. Clean concrete is fine if the area is stable and dry, though many owners prefer barriers or pads under the tires for long-term storage. Keeping inflation pressures checked during storage helps the tire maintain its shape.

If the American Motors Concord will sit for extended periods, roll it occasionally or reposition it so the same section of tread is not carrying the load month after month. A car that is driven only seasonally benefits from routine visual checks for flat spotting, weathering, and sidewall cracking before it goes back into service.

Tires on an American Motors Concord should be inspected regularly even if the car sees very little mileage. Collector cars often age out their tires long before they wear them out, so inflation pressure, sidewall condition, tread surface, and any signs of irregular wear matter more than mileage alone. A quick check before each drive and a closer inspection several times a year is a sensible pattern.

That routine is especially useful on an American Motors Concord because the car may carry anything from period-style alphanumeric sizing to later metric radials. Small issues such as underinflation, cracking, or an old repair become much easier to address when they are caught in the garage rather than discovered after the car is already on the road.

American Motors Concord tires should be replaced when age, cracking, hardening, separation, persistent vibration, or damage raises concern, even if the tread still looks deep. Collector tires often spend more time aging than wearing, so appearance alone is not enough to judge serviceability. Any tire with questionable history deserves closer scrutiny before continued road use.

The important habit is to think of tire condition as part of the car’s overall preservation rather than a simple tread-depth question. If the American Motors Concord has sat for long periods or recently returned to use after storage, have the tires evaluated carefully and replace them when age and condition no longer support confidence.

American Motors Concord uses several period-correct size types across its production run, including C78-14, D78-14, DR78-14, 195/75R14, and 205/70R14. The mix shows the Concord’s place in the late 1970s and early 1980s transition from alphanumeric sizing into metric radial sizing. More than one approach can therefore be correct depending on the exact year and configuration.

For restoration work, the most reliable path is to match the car’s exact year and setup first, then compare against original literature, window-sticker information if available, and AMC-focused club knowledge. That approach keeps the restoration anchored to the individual American Motors Concord rather than assuming one tire answer fits the whole model run.

Yes, correct tire fitment can affect both the visual credibility and judged authenticity of an American Motors Concord. Size format, sidewall treatment, and overall stance all shape whether the car looks properly restored for its year. A 1978 Concord wearing an obviously later-looking tire treatment can present very differently from one fitted in a way that matches its period character.

Judging standards vary by event, so a serious American Motors Concord restoration should be checked against AMC club guidance and the expectations of the show or class involved. Even when the car is not destined for judging, correct tire fitment helps preserve the proportions and road presence that make the restoration feel right.

American Motors Concord restoration choices can draw from wide whitewall, narrow whitewall, blackwall, redline, dual redline, and raised white letter offerings in the listed radial sizes. The most correct sidewall style depends on the year, the trim level, and whether the car is being restored as a formal family car or with a sportier late-period presentation. Whitewalls generally suit the more conservative side of the Concord’s personality, while blackwall or performance-themed sidewalls fit a different look.

The best restoration result comes from treating sidewall style as part of the car’s whole presentation rather than an isolated tire detail. Compare the wheel covers, paint treatment, and trim package on the American Motors Concord so the sidewall style supports the era and character you are trying to recreate.

A properly selected, properly mounted, and properly maintained tire can be suitable for driving an American Motors Concord on public roads, provided the rest of the car is in sound mechanical condition. The Concord is a late-classic road car rather than a brass-era machine, so normal road use is realistic when the tire size and construction match the vehicle’s setup. Safety starts with correct fitment rather than simply choosing any tire that fits a 14-inch wheel.

Before regular use, make sure the American Motors Concord has a matched set with no age-related cracking, visible damage, or serious inflation issues. It is also wise to consider how the car is intended to be driven, since a period-style appearance tire and a sportier radial presentation can lead to different expectations behind the wheel.

Before driving an American Motors Concord, check tire pressure, visible sidewall condition, tread surface, valve stems, and any signs that the car has been sitting long enough to develop flat spotting or weathering. Look for uneven wear that could point to alignment or suspension issues, especially on a collector car that may not be driven often. Confirming that all four tires are the intended size and construction type is equally important.

That pre-drive routine becomes even more useful on an American Motors Concord because the model spans several tire formats across its years. A few minutes in the garage can catch a mismatch, an aging tire, or an inflation problem before it affects how the car steers, rides, or stops once you are out on the road.

An American Motors Concord should always be driven at speeds appropriate to the condition, construction, and age of the tires actually fitted to it, not just the capability of the car itself. A later metric radial setup may support a different driving feel than an earlier alphanumeric bias-ply arrangement, and older collector tires deserve more caution than freshly manufactured ones. Tire age and condition matter at least as much as size.

The safest approach is to drive the American Motors Concord conservatively until the full condition of the tires and chassis is well understood. If the car has recently come out of storage or has changed tire types from a previous setup, build speed gradually and pay close attention to steering feel, vibration, and straight-line stability.