1973 Ford Ford Tires

The 1973 Ford Ford uses one of three bias-ply tire sizes: G78-15, H78-15, or J78-15. The correct size depends on the exact sub-model, with the Custom w/351 Eng. using G78-15 or H78-15, and the Custom w/400 Eng. plus Custom w/429 & 460 Eng. using H78-15 or J78-15.

That means the first step is identifying the specific engine-based version and then confirming what is currently on the car. Since all three sizes use a 15-inch rim, the real question is not just wheel diameter, but which size range matches the sub-model and whether the car still has its intended wheel and tire setup.

The covered tire fitments for the 1973 Ford Ford all use a 15-inch rim diameter. G78-15, H78-15, and J78-15 are all built around that same 15-inch wheel size, even though the overall tire sizes differ across the sub-model range.

A shared rim diameter does not mean every tire size should be treated as interchangeable. Wheel width, the exact tire size called for by the sub-model, and the car's actual clearance still need attention, especially if the vehicle has been changed from its earlier wheel setup or is being converted to a radial alternative.

The 1973 Ford Ford has more than one tire size because fitment varies by sub-model. The Custom w/351 Eng. falls into the G78-15 to H78-15 range, while the Custom w/400 Eng. and Custom w/429 & 460 Eng. use the larger H78-15 to J78-15 range.

That variation makes sub-model confirmation more important than simply matching the rim diameter. A buyer choosing tires should verify the engine-based configuration, inspect the current wheel and tire combination, and then compare the available styles and constructions within the right size group instead of assuming every 1973 Ford Ford used the same tire.

G78-15 is a bias-ply primary tire size for the 1973 Ford Ford. It uses the vintage alphanumeric sizing system rather than a modern metric format, and its radial alternatives are treated separately from the original-style bias-ply fitment.

That distinction matters because keeping G78-15 in bias-ply form preserves the traditional construction and visual character associated with the period fitment. A radial alternative can still be considered, but the owner should compare wheel width, overall dimensions, and clearance before changing construction so the car's setup remains properly matched.

Radial equivalents for H78-15 include 215R15 as the 80-series metric radial option, P225/75R15 as the 75-series P-metric radial option, P235/70R15 as the 70-series P-metric radial option, and 760R15 as the bias-look radial equivalent. Each of those alternatives keeps the fitment conversation on a 15-inch rim.

The practical difference is in sizing convention and profile style rather than just construction alone. A buyer considering one of these options should confirm the wheel is suitable within the 6-8 inch recommended rim-width range, then check steering and body clearance carefully before treating any one equivalent as the right substitute for every car.

Start by matching the radial alternative to the correct original size group: G78-15, H78-15, or J78-15. Then verify the wheel diameter, the wheel's usable width, and the radial equivalent being considered, whether that is an 80-series metric radial, a P-metric 75-series or 70-series radial, or a bias-look radial.

A careful conversion also involves checking clearance at the fenders, suspension, and steering range, especially on a full-size car that may have had wheel or ride-height changes over the years. Tire choice should also reflect whether the priority is preserving a traditional look or moving toward a radial presentation with a different sidewall profile.

Start with the exact sub-model so the tire size is correct before anything else. Once the car is matched to G78-15, H78-15, or J78-15, compare the available bias-ply offerings by sidewall style, tire series, rim-width suitability, and whether the goal is a traditional full-size passenger-car appearance or a more utilitarian blackwall look.

The decision changes slightly by size because the product mix is not identical across all three. Some sizes emphasize wide whitewalls, while others add narrow whitewall or dual-white-stripe treatments, so appearance and wheel compatibility should be weighed together instead of choosing only by brand name or by the largest size that happens to fit the rim diameter.

The available sidewall styles for the 1973 Ford Ford include blackwall, wide whitewall, narrow whitewall, and dual-white-stripe. The exact choices depend on tire size, with G78-15 and H78-15 offering blackwall and wide whitewall options, while J78-15 focuses on whitewall-oriented BFGoodrich styles.

That variety makes sidewall treatment one of the biggest appearance decisions on this page. A broad whitewall creates a more formal and restoration-oriented presentation, while blackwall reads more restrained and functional; the right choice depends on the car's visual direction and should still be paired with the correct size for the sub-model.

Coker Classic, STA, and BFGoodrich all appear in the available tire choices for the 1973 Ford Ford. Coker Classic covers G78-15 and H78-15 wide whitewall options, STA appears in G78-15 and H78-15 blackwall truck-style bias-ply lines, and BFGoodrich covers J78-15 whitewall and dual-white-stripe offerings.

Brand choice should be viewed alongside the specific size and visual style rather than treated as a separate decision. Since each brand appears in different size and sidewall combinations, the better comparison is which product aligns with the car's required fitment, wheel specification, intended appearance, and how the owner plans to use the vehicle.

A period-style 1973 Ford Ford starts with the correct primary bias-ply size for the specific sub-model: G78-15, H78-15, or J78-15. From there, the most restoration-oriented choices are the bias-ply offerings with traditional sidewall treatments such as wide whitewall, narrow whitewall, or dual-white-stripe, depending on the size involved.

The best visual match depends on how the car is being presented rather than on one universal answer for every configuration. Buyers who are pursuing exact originality should compare their choice against marque references, photos, and other historical documentation, while those building a strong period look can use the proper size and construction as the main foundation.

Tire construction changes both the visual character and the stance of a restored 1973 Ford Ford. A bias-ply tire keeps the vintage sizing language and traditional look associated with the car's original-era fitment, while a radial equivalent introduces a more modern sizing convention and, in some cases, a different sidewall presentation.

That is why construction choice should follow the restoration goal rather than convenience alone. A bias-look radial can help bridge the gap by offering a radial option with a more traditional appearance, but any conversion still deserves a check of wheel width, tire dimensions, and overall visual balance on the car before making the final decision.

Yes, modifications can affect tire fitment on a 1973 Ford Ford even when the wheel still measures 15 inches in diameter. Changes to wheel width, wheel offset, suspension height, springs, steering components, or body clearance can alter how a G78-15, H78-15, J78-15, or radial equivalent sits and moves through its turning range.

That matters most when the car no longer matches a stock-style wheel and suspension layout. Anyone working with aftermarket wheels or altered ride height should measure carefully before choosing a tire, paying attention to sidewall clearance, fender room, and whether the intended tire size still suits the sub-model's original fitment range.

Before road use, inspect the wheels for correct diameter and general condition, confirm the tire size matches the sub-model, and make sure the tires are mounted and inflated appropriately for their application. It is also smart to look over the valve stems, wheel hardware, and visible suspension and steering components before the first meaningful drive.

Collector-era cars often spend long periods parked, so the rest of the chassis deserves attention too. A careful walkaround should include checking for rubbing at full steering lock, signs of air loss, and any cracking, bulges, or damage that may have developed during storage, even if the tires themselves are newly installed.

Collector-car tires in G78-15, H78-15, and J78-15 should be maintained with regular pressure checks, visual inspections, and periodic evaluation for age-related deterioration. Bias-ply tires on a low-use 1973 Ford Ford should also be watched for flat-spotting after long storage, along with any cuts, sidewall cracking, uneven wear, or slow air loss.

Storage conditions matter almost as much as mileage on a collector vehicle. Keeping the car away from prolonged sunlight, moisture, excess heat, and ozone sources helps preserve the rubber, while routine movement and inspection make it easier to catch developing problems before a longer drive or seasonal return to the road.