1973 American Motors Tire Fitment Guide

1973 American Motors vehicles use fourteen distinct sizes across five model lines: F78-14, G78-14, H78-14, HR78-14, 6.45-14, C78-14, 695-14, D70-14, DR70-14, D78-14, E78-14, E70-14, FR70-14, and E60-15. Ambassador uses F78-14, G78-14, H78-14, and HR78-14; Gremlin uses 6.45-14, C78-14, 695-14, D70-14, and DR70-14; Hornet uses 695-14, C78-14, and D78-14; Javelin uses D78-14, E78-14, E70-14, FR70-14, and E60-15; Matador uses E60-15, E78-14, F78-14, H78-14, and HR78-14.

Most of these fitments mount on 14-inch wheels, but E60-15 requires a 15-inch wheel, so year and make alone are not enough to choose correctly. Where rim width figures are available, they range from 4.50 to 8.00 inches depending on size, with examples such as 695-14 at 5.00 to 6.00 inches, F78-14 and G78-14 at 5.00 to 7.00 inches, H78-14 at 5.50 to 8.00 inches, E70-14 at 6.00 to 7.00 inches, and E60-15 at 7 inches. Start by identifying the model and wheel diameter actually on the car.

On a 1973 American Motors tire, 695-14 is a numeric bias-ply size. The 6.95 portion is the nominal section width expressed without the decimal in the size code, and the 14 is the rim diameter in inches. That format is common on compact and intermediate American cars from the era before metric sizing became standard, and on AMC it appears on Gremlin and Hornet applications.

That matters because 695-14 is not interchangeable by name with every other 14-inch AMC size. It has its own recommended wheel width range, 5.00 to 6.00 inches, and it also carries a distinct look depending on whether you choose blackwall, dual redline, or narrow whitewall versions. If your car is a Gremlin or Hornet and you are aiming for an era-correct bias-ply fitment, this size is one of the key compact AMC options to compare.

No, 1973 American Motors models do not all use the same tire size. The compact Gremlin and Hornet use smaller 14-inch fitments such as 6.45-14, C78-14, and 695-14, while the larger Ambassador and Matador move into F78-14, G78-14, H78-14, and HR78-14. Javelin has its own performance-oriented mix, including D78-14, E78-14, E70-14, FR70-14, and E60-15.

That model spread has a real effect on tire selection because some sizes are unique to one model and some are shared only by a pair of models. It also means wheel diameter is not universal across the 1973 AMC range, since Javelin and Matador can use E60-15 while most other sizes remain 14-inch. If you are still deciding between sizes, identify the exact model first and then confirm whether the car is on a 14-inch or 15-inch wheel.

That depends on which 1973 American Motors model you own and how you want the car to present and behave. Radial-size options appear in HR78-14 for Ambassador and Matador, DR70-14 for Gremlin, and FR70-14 for Javelin, while the rest of the AMC range here stays in bias-ply fitments. Bias-ply tires are the more traditional period construction for 1973 AMC applications, while the radial choices suit owners who want to stay within a correct size family that reflects the era's transition toward radial construction.

For a restoration judged closely on authenticity, bias-ply construction is usually the safer direction unless you have marque-specific evidence for a radial-equipped car. For a driver that sees more regular road use, a radial-size option may be attractive if your exact model and wheel setup support it. The important point is not to treat radial and bias-ply sizes as universal substitutes across the AMC line; choose within the size family that matches your model first.

1973 American Motors tires are available with a wide range of sidewall presentations, including wide whitewall, narrow whitewall, dual-white-stripe, blackwall, dual-redline, redline, pin-white-stripe, and RWL. The compact-oriented 695-14 size alone spans blackwall, dual redline, and narrow whitewall versions, while G78-14 offers several whitewall treatments for Ambassador. Performance-flavored Javelin and Gremlin sizes such as D70-14, E70-14, FR70-14, and E60-15 lean into redline, stripe, and raised-white-letter styling.

Choosing the right sidewall is often just as important visually as choosing the right size. Full-size and luxury-leaning AMC cars generally look most at home with whitewall treatments, while sporty Javelin and some Gremlin applications better match redline, stripe, or RWL sidewalls typical of the early 1970s performance market. If show authenticity matters, compare your car's build style, market presentation, and period photography before settling on a sidewall treatment.

1973 American Motors tire coverage includes Coker Classic, BFGoodrich, US Royal, Firestone, STA, and Goodyear. Coker Classic appears in F78-14, G78-14, H78-14, and E78-14; BFGoodrich appears in G78-14 and 695-14; US Royal appears in 695-14; Firestone appears in D70-14 and E70-14; STA appears in E78-14; and Goodyear appears in E70-14, FR70-14, and E60-15. That spread gives AMC owners access to both traditional passenger-car bias-ply offerings and period-themed performance tires.

Brand choice usually comes down to the exact size you need and the look you want on the car. Some sizes have only one brand path, while others open up several visual directions, especially where whitewalls, blackwalls, redlines, or RWL sidewalls are available within the same size family. Once you have confirmed your model and size, compare brands for construction type, sidewall style, and wheel-width compatibility rather than assuming every brand covers every AMC fitment.

Rim width depends on the exact tire size used on the 1973 American Motors model. Where wheel-width guidance is available, 695-14 fits 5.00 to 6.00-inch rims, F78-14 and G78-14 fit 5.00 to 7.00-inch rims, H78-14 fits 5.50 to 8.00-inch rims, E78-14 fits either 4.50 to 7.00 inches or 5.0 to 6.0 inches depending on the tire, E70-14 fits 6.00 to 7.00 inches, D70-14 and FR70-14 fit 6-inch rims, and E60-15 fits a 7-inch rim.

That range is why wheel width should be confirmed against the actual wheel on the car before ordering. Two tires can share a 14-inch rim diameter and still want different wheel widths, especially when moving between compact-car sizes, full-size passenger sizes, and lower-profile performance fitments. If your wheel has been changed from original, measure it directly rather than relying on model name alone.

Inner-tube requirements on 1973 American Motors tires depend on the exact product, not just the size code. E78-14 is a good example: one STA Traxion version is explicitly tubeless, while other E78-14 offerings are not marked the same way, so tube status can vary by product within that size. Other sizes here do not carry consistent tube-type or tubeless markings across the full AMC range, so the specific sidewall marking on the tire remains the point to verify.

That matters most if you are mounting tires on original wheels, wheels with riveted construction, or wheels with surface condition concerns. A tube-type tire, a tubeless tire, and the wheel itself all need to work together as a system. Before mounting, confirm whether the tire is marked TT or TL, inspect the wheel condition closely, and make sure the valve stem and wheel prep match the construction you intend to use.

Original 1973 American Motors wheels cannot be treated as universal across the entire AMC lineup because the range includes both 14-inch and 15-inch tire sizes. Most sizes here are 14-inch, but E60-15 requires a 15-inch wheel, and several 14-inch sizes also call for different wheel-width ranges depending on whether the application is compact, full-size, or performance-oriented. Rim diameter compatibility comes first, and wheel width follows closely behind it.

If your car still has its factory wheels, matching the tire to the wheel is usually straightforward once the exact model and size family are confirmed. If the wheels were changed decades ago, the model name alone is no longer enough. Read the wheel size stamp if present or measure the wheel directly, then compare that diameter and width to the tire's requirements before assuming a shared AMC wheel will accept every size in the year range.

A stored 1973 American Motors should be kept in a cool, dry, dark space away from direct sunlight, electric motors, battery chargers, furnaces, and other ozone-producing equipment that can age rubber prematurely. Keep the tires clean, maintain proper inflation, and move the car occasionally so one section of the carcass is not carrying the load for months at a time. Bias-ply tires tend to develop temporary flat-spotting more readily during long static storage than radial constructions.

If the car will sit for an extended season, many owners either roll it periodically or support it in a way that reduces constant load on one contact patch while still protecting the suspension and chassis appropriately. Covering the tires from light exposure also helps. Good storage habits preserve sidewall appearance, reduce cracking risk, and make the first drive of the season much more predictable.

On a 1973 American Motors, tire life is usually limited more by age than by mileage because collector cars often spend long periods parked. A sensible rule is to inspect tires closely once they reach the five-to-seven-year range and to treat around ten years as the point where replacement deserves serious consideration even if tread depth still looks good. The DOT date code on the tire sidewall is the best starting point for establishing age.

Low miles can create a false sense of security on vintage cars. A tire that looks attractive at a glance may still have age-hardening, sidewall cracking, internal degradation, or long-term flat spotting that makes it a poor choice for road use. For a car that sees occasional but meaningful driving, age, storage history, and inspection results matter far more than odometer-based assumptions.

Tires on a 1973 American Motors should be inspected before every drive and given a closer look before any longer outing. Check inflation, tread wear, sidewall cracking, weathering around the bead area, cuts, bulges, and any signs that the car has been sitting low on one corner. On cars using tube-type setups, valve stems and any signs of slow leakage deserve extra attention.

A quick walk-around catches most age-related issues before they become roadside problems. After the car has been driven a few miles, it is also worth noticing vibration, pull, or harsh thump that may point to flat spotting, low pressure, or a developing casing problem. Frequent inspection is one of the easiest ways to keep a lightly used collector AMC dependable without overcomplicating routine maintenance.

A 1973 American Motors Ambassador would ordinarily have been associated with bias-ply tires in period, and the size family here includes F78-14, G78-14, and H78-14 alongside the radial-format HR78-14 option. That reflects the early-1970s market transition, when some American cars could be encountered with radial alternatives even though bias-ply construction still defined much of the era's original look. No single original-equipment brand should be assumed without model-specific factory literature or a marque reference.

For a restoration, the safest path is to match the size family, construction type, and sidewall style to your exact car's build and presentation. A broad whitewall bias-ply tire will project a different character than a radial-format replacement, even if both belong to the right Ambassador fitment family. If authenticity matters beyond general correctness, consult an AMC marque club, factory brochure, or survivor-car evidence for your specific body style and market.

Correct tire fitment absolutely matters when showing a 1973 American Motors, especially in classes that reward factory-authentic presentation. Judges and knowledgeable enthusiasts often notice whether the tire size family matches the model, whether the construction is era-appropriate, and whether the sidewall treatment suits the car's original character. A Javelin on a whitewall full-size tire or an Ambassador on an obviously sporty low-profile look can stand out for the wrong reasons even before anyone studies the rest of the car.

That does not mean every event applies the same standards. Some local shows focus more on overall condition, while marque-specific and concours-style events can be much stricter about size, construction, and sidewall details. If you are building the car to compete seriously, review the judging rules for that event and compare your tire choice to period AMC photography and marque-club guidance before committing.

For a 1973 American Motors Javelin in E70-14, Firestone Wide Oval and Goodyear Custom Wide Tread are both bias-ply options built for 14-inch wheels and the same 1400-pound-at-32-psi load level. Firestone Wide Oval appears in pin-white-stripe, redline, and RWL versions, while Goodyear Custom Wide Tread appears in an RWL version. Their wheel-width guidance is essentially the same as well, with Firestone at 6.00 to 7.00 inches and Goodyear at 6.0 to 7.0 inches.

That means the practical distinction is mostly visual and brand character rather than a major fitment difference. If you want more sidewall-style variety within the same size, Firestone gives you more period performance looks to choose from. If your build is centered on a Goodyear-style muscle-era presentation, the Custom Wide Tread path keeps the same basic size and wheel-width compatibility while steering the look in a different direction.

A properly sized, properly maintained tire for a 1973 American Motors can be suitable for normal highway driving, but the answer depends on construction type, age, condition, and the exact product. Among the radial choices shown here, no speed letter appears in the size markings supplied, so there is no basis for assigning a posted speed-category ceiling from those codes alone. Bias-ply products in these AMC sizes are also built to period patterns, which means their road manners will differ from modern passenger tires even when they are in excellent condition.

In real use, the vehicle's own brakes, suspension geometry, steering condition, and age-related mechanical health often matter as much as the tire itself on a 1973 AMC. A Javelin, Matador, or Ambassador in top condition can be a pleasant highway car, but any old-car trip should begin with realistic speed expectations and a careful pre-drive inspection. Good condition and proper inflation matter more than assuming any vintage-style tire should be driven like a modern touring tire.

Inflation pressure on 1973 American Motors tires should start with the factory recommendation for the car and then be checked against the tire's own rating information. Several AMC sizes here carry max-load figures at 32 psi, including F78-14 at 1500 pounds, G78-14 at 1620 pounds, H78-14 at 1770 pounds, 695-14 at 1230 pounds, D70-14 at 1320 pounds, E70-14 at 1400 pounds, FR70-14 at 1500 pounds, and E60-15 at 1400 pounds. One E78-14 STA Traxion version is rated at 1710 pounds single and 1500 pounds dual at 60 psi.

Those figures are load-and-pressure ratings for the tire, not universal inflation recommendations for every AMC application. Do not transfer a pressure number from one size to another or from one product line to a different construction. Use the owner's manual or factory placard as your baseline, then confirm that the tire you select is being operated within its own published load and pressure limits.

Before a longer trip in a 1973 American Motors, inspect each tire for sidewall cracking, cuts, bulges, uneven wear, and any sign of impact damage or prolonged underinflation. Confirm cold inflation pressures, check valve stems, and inspect the spare as carefully as the four tires on the car. If the car uses a tube-type setup, or may use one depending on the product and wheel combination, make sure leakage and stem condition have been checked recently.

Tires are only one part of the pre-drive routine on a 1973 AMC, but they are the only part touching the road. A few minutes spent checking pressure, age, and visible condition can prevent vibration, poor braking feel, or roadside trouble that spoils the trip. For any older car headed out beyond local driving, pair the tire inspection with a quick review of brakes, fluids, belts, hoses, and wheel-bearing condition.