1973 Ford Tire Fitment Guide

1973 Ford vehicles used a very broad mix of sizes: G70-14, G78-14, H78-14, F78-14, E78-15, G78-15, L78-15, 700-15, 6.00-14, E78-14, 800-16.5, H78-15, 650-16, LR78-15, 875-16.5, 950-16.5, 750-16, 12-16.5, J78-15, JR78-15, H70-14, F70-14, HR78-14, D70-14, DR78-14, 6.45-14, C78-14, E70-14, 600-13, A78-13, A70-13, 225R15, and 230R15 across the full model range. Rim diameters span 13, 14, 15, 16, and 16.5 inches, so there is no single year-wide fitment for 1973 Ford.

The practical takeaway is that model identification comes first. A Pinto, Mustang, Torino, Thunderbird, Bronco, F-Series truck, and full-size Ford may all be from the same year, but they do not share the same wheel diameter or size family. Once you confirm the exact model, compare the tire size already on the vehicle to the wheel diameter and any rim-width guidance tied to that size before choosing a replacement.

On a 1973 Ford, 700-15 is a numeric bias-ply size. The 7.00 portion refers to nominal section width in inches, and the 15 refers to the wheel diameter in inches. Within the 1973 Ford range, 700-15 appears on the Bronco, F-100, and F-150, all of which use 15-inch wheels when fitted with that size. Products in 700-15 use blackwall and wide whitewall sidewall styles, with rim-width guidance of 5.00 to 5.50 inches where that specification is supplied.

That matters because 700-15 belongs to the older numeric truck-tire system rather than the alphanumeric passenger-car system. If your 1973 Ford truck or Bronco has 700-15 on the sidewall, staying in that same numeric family usually keeps the period-correct look and wheel relationship intact. It is still smart to confirm the wheel itself, because some trucks from this era could also appear with different 15-inch or even 16- and 16.5-inch fitments.

No. 1973 Ford covers 22 model lines and uses many different sizes, including compact 13-inch tires on the Pinto, several 14-inch car sizes on the Maverick, Mustang, Torino, and Gran Torino, 15-inch full-size and truck sizes on the LTD, Galaxie, Bronco, and F-100, and larger 16- and 16.5-inch sizes on heavier F-Series trucks and vans. Ford also used both bias-ply and radial constructions in certain parts of the lineup.

That wide spread means the badge on the hood is only the starting point. If you are choosing tires for a 1973 Ford, identifying the model will narrow the size family, and identifying the wheel diameter will narrow it further. On some models, especially Torino-, Maverick-, wagon-, Thunderbird-, and truck-based applications, you may also need to decide between a traditional bias-ply fitment and a radial-style alternative.

The right choice for a 1973 Ford depends on which model you own and which radial alternatives were used in that part of the range. Radial fitments appear in sizes such as LR78-15 for the F-150, JR78-15 for Ford Wagons, HR78-14 for Gran Torino and Torino, DR78-14 for Maverick, and 225R15 or 230R15 for Thunderbird, while most other 1973 Ford applications stay in bias-ply form. Bias-ply tires are the more era-typical choice for early-1970s American cars and light trucks.

If your goal is a stock restoration or show presentation, bias-ply construction usually preserves the period look and sidewall character more faithfully. If your model accepts one of the radial sizes used in the 1973 Ford range, a radial may better suit an owner who plans more regular road use and prefers to remain within a radial-era fitment family. The best starting point is to match the size family used on your exact model before weighing appearance against driving preference.

1973 Ford tires are available in a wide variety of period-appropriate sidewall treatments depending on size. Across the covered sizes, options include blackwall, wide whitewall, narrow whitewall, dual white stripe, pin white stripe, redline, and raised white letter. Sport-oriented 14-inch sizes such as G70-14, F70-14, D70-14, and E70-14 lean toward redline, pin stripe, and RWL treatments, while many full-size and luxury-car sizes such as G78-14, H78-14, G78-15, H78-15, L78-15, and J78-15 offer whitewall variations.

Sidewall choice can change the personality of a 1973 Ford almost as much as the wheel itself. A Mustang, Torino GT-type application, or Maverick with redlines or RWLs will read differently than a Galaxie, LTD, or wagon on wide whitewalls. For judged restoration work, sidewall style matters along with size and construction, so it is worth comparing your car to factory literature, period photos, or marque-club guidance before making the final call.

Several brands cover 1973 Ford fitments, including Firestone, Goodyear, BFGoodrich, Coker Classic, STA, Garfield, and Lester. Firestone and Goodyear appear heavily in sporty 14-inch sizes such as G70-14, F70-14, D70-14, and E70-14. BFGoodrich and Coker Classic cover many whitewall passenger-car applications such as G78-14, H78-14, F78-14, G78-15, L78-15, H78-15, J78-15, and 600-13, while STA covers many truck and utility sizes including G78-15, E78-14, 800-16.5, 875-16.5, 950-16.5, and 12-16.5.

Brand choice usually follows the character of the vehicle and the sidewall style you want. A sporty intermediate or pony car often points toward a muscle-era visual theme, while a full-size sedan, wagon, or luxury Ford may call for whitewalls. Trucks and vans often push the decision toward blackwall utility patterns. Once the size is confirmed, compare brands within that exact size rather than assuming the same brand options carry across the entire 1973 Ford lineup.

For 1973 Ford sporty 14-inch bias-ply sizes, Firestone Wide Oval and Goodyear Custom Wide Tread often occupy the same visual space but differ in sidewall offerings and rim-width spread. In G70-14, Firestone appears in redline, RWL, and pin white stripe styles, while Goodyear appears in redline. In F70-14 and E70-14, Firestone offers pin white stripe, redline, and RWL, while Goodyear appears in RWL. Firestone and Goodyear both cover 6.0- to 7.0-inch type rim widths in these sizes, with G70-14 Goodyear spanning 6.0 to 8.0 inches where that spec is supplied.

The real difference for most 1973 Ford owners is visual character more than basic fitment. If your car needs a particular muscle-era sidewall look, one brand may align better with that goal in a given size. Rim-width range can also matter if your wheels are at the wider end of what a period-style tire will accept. Once you narrow the exact size, compare sidewall style first and wheel compatibility second.

Rim-width requirements for 1973 Ford tires depend entirely on the size. Examples include G70-14 at 6.0 to 8.0 inches depending on brand, G78-14 at 5.00 to 7.00, H78-14 at 5.50 to 8.00, F78-14 at 5.00 to 7.00, G78-15 at 5.00 to 7.00, L78-15 and LR78-15 at 5.50 to 8.00, 700-15 at 5.00 to 5.50, H78-15 and J78-15 at 5.50 to 7.00, 650-16 at 4.50 to 5.00, 750-16 at 5.00 to 6.00, 800-16.5 at 6.00 to 6.50, 950-16.5 at 6.50 to 6.75, and 12-16.5 at 9.75 where specified.

That range is why the wheel should be checked before ordering, especially on trucks that may have been swapped over the decades. Two tires can share the same rim diameter and still want different wheel widths. Passenger-car owners should be especially careful with sporty 70-series sizes, while truck owners need to verify whether the wheel is a true 16-inch or 16.5-inch design because those diameters are not interchangeable.

Inner-tube requirements on 1973 Ford tires depend on the exact product, not just the vehicle. Some products are clearly marked tubeless, such as the STA Traxion 8 Ply Rated Tubeless in E78-14 and the STA Transport 8Ply TBLS version in 12-16.5, while many other products in the same year-make range carry no tubeless marking in the size description. That means tube status can vary by product even within a size family, especially on truck applications.

The safest approach is to match the tire to the wheel design and then confirm the sidewall marking for the specific product you intend to use. Older wheels, especially on trucks, may have service-history changes that affect whether a tube is appropriate. If you are restoring a 1973 Ford with original wheels, inspect the wheel condition and consult a wheel or marque specialist before assuming that every tire in a given size should be mounted the same way.

A stored 1973 Ford should be kept away from direct sunlight, excessive moisture, and ozone sources such as electric motors, compressors, and battery chargers. Clean, dry floors and stable temperatures are better for both bias-ply and radial tires. Because much of the 1973 Ford range uses bias-ply construction, long stationary periods can encourage flat-spotting more readily than on a radial, especially on heavier full-size cars, wagons, and trucks.

Moving the vehicle periodically, slightly changing tire position, or using stands for long-term storage can help reduce stress on the carcass. Keep tires inflated to a sensible storage pressure and avoid letting them sit underinflated. If the vehicle is a show car or a low-mile collector, routine storage habits often matter more to tire life than annual mileage, particularly with older-style sidewalls and reproduction bias-ply construction.

On a collector 1973 Ford, tire age is usually more important than tread wear. A sensible rule is to begin evaluating tires closely once they are around five to seven years old and to treat ten years as the point where replacement deserves serious consideration regardless of remaining tread. The DOT date code on the tire sidewall is the best way to judge actual age, since many classic cars, wagons, and trucks accumulate low miles but still age their tires over time.

That matters because a lightly driven Mustang, LTD, Bronco, or F-Series truck can still have hardening rubber, cracking, or weakened internal structure long before the tread looks worn out. Collector vehicles often fool owners into thinking the tires are still fresh because the car sees only short seasonal drives. Age-based inspection and replacement planning is the better approach for the 1973 Ford range than waiting for mileage alone to dictate the decision.

Tires on a 1973 Ford should be inspected before every drive and again before any longer road trip. Look for sidewall cracking, tread separation, uneven wear, bulges, punctures, and any sign that the tire is no longer holding pressure consistently. On tube-type or possibly tube-used applications, the valve stem and tube-related sealing condition deserve attention as well, particularly on older truck and utility wheels.

Frequent checks matter because many 1973 Ford vehicles are collector cars that spend long periods parked, then are expected to go immediately onto the road. A quick inspection catches problems before they become roadside issues. It is also wise to inspect the spare, because the spare on an older Ford often gets ignored for years even though it may be needed during a trip where a matching vintage-size replacement is not easy to source locally.

For a 1973 Ford Mustang, the era-correct starting point is bias-ply construction, because bias-ply tires were still common original-equipment practice on American cars of this period. Within the 1973 Mustang range here, the applicable sizes are F70-14, F78-14, E78-14, and E70-14, all on 14-inch wheels. Those sizes reflect the split between stock-style and sportier low-profile fitments that a Mustang buyer could encounter depending on how the car was equipped.

The best restoration approach is to first verify the exact size associated with your car's equipment, then choose a sidewall style that matches the look you are trying to recreate. A show-oriented restoration may lean toward a period-style bias-ply with the right stripe or whitewall treatment, while factory-authentic research should also include period brochures, build information, and Mustang marque-club sources. Those resources help confirm market- and package-specific details without guessing.

Yes, correct tire fitment matters on a shown 1973 Ford because size, construction, and sidewall style all affect whether the car or truck presents as era-correct. A Mustang or Gran Torino wearing an obviously different sidewall style than period practice can stand out just as much as a full-size LTD or wagon with the wrong whitewall treatment. On trucks, using a 16-inch tire on a 16.5-inch wheel family, or vice versa, is not only incorrect but fundamentally incompatible.

For judged events, the most convincing result usually comes from matching the vehicle's original size family first, then narrowing down the correct sidewall look for that model and use. Radials on a car judged strictly for originality may be viewed differently than bias-ply fitments, especially on earlier-1970s American vehicles. Event standards vary, so marque clubs and model-specific judging guides are the right place to confirm what will matter most in your class.

In L78-15 for a 1973 Ford, Coker Classic and BFGoodrich share the same basic bias-ply construction and the same 5.50- to 8.00-inch rim-width guidance where that specification is given, but they differ in sidewall presentation. Coker Classic appears in blackwall and wide whitewall forms, including 3.00-inch and 4.00-inch whitewall versions, while BFGoodrich appears in a 1.00-inch narrow whitewall. Max load capacity is 1970 pounds at 32 psi across those L78-15 products, with small weight differences tied to sidewall style.

That makes the decision mainly a visual one once L78-15 is confirmed as the correct size for your 1973 Ford truck or Bronco application. A blackwall or narrow whitewall can give a more restrained look, while a wide whitewall creates a stronger vintage statement. Since the size itself is already a substantial 15-inch bias-ply fitment, the brand choice often comes down to the sidewall style that best matches the truck's restoration theme.

Many 1973 Ford tires are suitable for normal highway use when they are the correct size, properly mounted, correctly inflated, and in sound condition. Most covered products here are bias-ply tires, and radial options appear only in a few model-specific sizes such as LR78-15, HR78-14, DR78-14, JR78-15, 225R15, and 230R15. No broad set of modern speed-letter markings appears across most of these vintage-style sizes, so the tire should be treated as one part of the vehicle's overall roadworthiness rather than the only limit.

In real use, a 1973 Ford's age, suspension condition, steering components, brakes, alignment, and wheel integrity often matter just as much as the tire itself. A full-size sedan, muscle-era intermediate, or vintage truck may operate safely at ordinary road speeds when properly sorted, but that does not turn it into a modern vehicle. Before regular highway use, make sure the entire chassis and braking system are ready for the kind of speeds and distances you plan to drive.

Inflation pressure on a 1973 Ford depends on the exact tire size and the product's own load-and-pressure specification. Examples include G70-14 at 1620 pounds at 32 psi, G78-14 at 1620 at 32 psi, H78-14 at 1770 at 32 psi, F78-14 at 1500 at 32 psi, L78-15 and LR78-15 at 1970 at 32 psi, H78-15 at either 1770 at 32 psi or 1830 at 45 psi depending on product, 800-16.5 at 2045 at 60 psi, 950-16.5 at 2780 at 60 psi, and 12-16.5 at 3000 at 45 psi where load data appears.

Those figures are tire ratings, not universal setting instructions for every 1973 Ford. The best approach is to start with the vehicle manufacturer's guidance for the model and then compare it with the tire maker's rating for the exact product you are using. Do not transfer pressure from one size to another just because the tires fit the same general vehicle family, especially when moving between passenger-car, utility-truck, and heavy-duty truck applications.

Before a longer drive in a 1973 Ford, inspect every tire for cracks, cuts, bulges, uneven wear, and signs of age-related hardening. Confirm cold inflation pressure, inspect valve stems, and make sure the spare is usable and inflated. On trucks and vans, double-check that the vehicle is actually wearing the correct wheel diameter for the tire, especially where 16-inch and 16.5-inch fitments can be confused after years of service changes.

Tire inspection should be part of a broader pre-trip routine that includes brakes, steering, wheel bearings, fluid levels, lights, and charging-system health. Vintage Fords often travel happily when prepared, but small deferred-maintenance issues tend to show up quickly on longer outings. If the vehicle has been sitting, give it a short local shakedown drive first rather than making the first trip of the season a long highway run.