1973 Jeep DJ5 Tires

The 1973 Jeep DJ5 uses three primary tire sizes: 7.35-15, F78-15, and H78-15. All three are bias-ply fitments built for 15-inch rims, and the covered DJ5 Model 85 can appear with any of those sizes depending on the wheel and tire combination on the vehicle.

That means the right starting point is not guessing by model name alone, but checking the actual size already mounted and confirming the wheel dimensions. On a vehicle like a DJ5, decades of service, replacement wheels, or previous tire changes can affect what belongs on it now.

The primary tire fitments for a 1973 Jeep DJ5 all use a 15-inch rim diameter. That applies across 7.35-15, F78-15, and H78-15, so the wheel diameter remains consistent even though the tire sizing format can differ.

Rim diameter is only one part of fitment, so it is still worth confirming wheel width before choosing a tire, especially when comparing bias-ply options with radial equivalents. A 15-inch wheel is necessary for these sizes, but the wheel’s width and the Jeep’s available clearance still influence what should be selected.

A 1973 Jeep DJ5 can be found with 7.35-15, F78-15, or H78-15 because vintage utility vehicles often remained in service long enough to receive different wheel and tire combinations over time. All three are 15-inch bias-ply fitments, but they represent different sizing systems and visual proportions.

That variation makes the existing setup especially important to verify before ordering a replacement. Looking at the sidewall size, checking the wheel diameter, and comparing the current stance of the Jeep will do more to narrow the correct choice than relying on the model name alone.

F78-15 is a primary bias-ply tire size for the 1973 Jeep DJ5. It uses the vintage alphanumeric bias-ply sizing system, with the final 15 indicating a 15-inch rim diameter rather than a modern radial construction.

That matters because an F78-15 bias-ply tire and an F78-15-style radial alternative are not the same thing, even when they are intended to cover similar fitment territory. Anyone moving away from the original-style construction should compare wheel width, overall tire presence on the vehicle, and available clearance before making the change.

For F78-15, radial equivalents include 195R15, P205/75R15, P215/70R15, and the 670R15 bias-look radial. For H78-15, the radial equivalents are 215R15, P225/75R15, P235/70R15, and the 760R15 bias-look radial.

Those options cover an 80-series metric radial, a 75-series P-metric radial, a lower-profile 70-series P-metric radial, and a radial built to preserve a more traditional bias-era look. Rim-width guidance is part of the decision too, with 5-7 inches associated with F78-15 equivalents and 6-8 inches associated with H78-15 equivalents.

Start with the exact primary size already on the Jeep, then compare only the radial equivalents associated with that size. F78-15 and H78-15 have defined radial alternatives, while the vehicle’s wheel diameter remains 15 inches across the primary fitments.

The important checks are wheel width, the intended equivalent size, and how much room the Jeep has at the steering and body openings. A bias-look radial can preserve a more traditional appearance, while metric and P-metric choices use newer sizing conventions that should be evaluated against the actual wheel and vehicle setup.

The first priority is matching the exact primary size on the vehicle: 7.35-15, F78-15, or H78-15. After that, the decision turns to construction style, sidewall appearance, and whether the Jeep is being kept close to a traditional working look or adapted toward a radial equivalent where that option exists.

Wheel width, intended use, and visual character all matter on a DJ5 because this is a simple utility vehicle that wears its tires prominently. A truck-style blackwall creates a different presentation than a wide whitewall, so the right choice depends on whether the goal is work-ready utility, restoration flavor, or general road use.

Among the available H78-15 products for the 1973 Jeep DJ5, sidewall choices include wide whitewall and blackwall. The wide whitewall options appear in the Coker Classic Bias Ply line, while the blackwall choice appears in the STA Traxion series.

That difference matters more than decoration alone, because the sidewall treatment changes the entire look of a vintage Jeep. A wide whitewall leans toward a more styled, restoration-oriented presentation, while a blackwall truck tire keeps a more utilitarian and commercial appearance suited to the DJ5’s practical roots.

Current H78-15 tire choices for the 1973 Jeep DJ5 include products from Coker Classic and STA. Those options stay within bias-ply construction, but they differ in tire series, sidewall style, and load specification.

Brand choice should be viewed as one part of the comparison, not the whole decision. It still helps to look at whether the tire is styled as a wide whitewall passenger-type option or a more truck-oriented blackwall, and then confirm that the wheel width and intended use line up with the tire’s specifications.

A period-style 1973 Jeep DJ5 starts with one of its primary bias-ply sizes: 7.35-15, F78-15, or H78-15, depending on the wheel and tire combination already on the vehicle. Staying within the original sizing language and bias-ply construction preserves the most traditional visual relationship between tire, wheel, and body.

From there, appearance becomes the deciding factor. An H78-15 wide whitewall creates a more dressed presentation, while a blackwall truck-style tire keeps the Jeep closer to a functional commercial look. When exact historical accuracy matters, the final choice should be checked against vehicle-specific restoration references and surviving examples.

Tire construction changes the character of a restored 1973 Jeep DJ5 as much as the sidewall style does. A bias-ply tire keeps the older sizing conventions and traditional visual feel associated with mid-century utility vehicles, while a radial equivalent usually introduces a more modern reading even when the overall intent is similar.

That does not automatically make one approach right and the other wrong. A restoration-minded owner may prefer bias-ply for presentation, while a driver-focused owner may consider a radial equivalent for F78-15 or H78-15. The best choice depends on whether the Jeep is being finished for display, casual use, or a balance of both.

Yes, modifications can affect tire fitment on a 1973 Jeep DJ5 even when the wheel diameter remains 15 inches. Aftermarket wheels, wheel-width changes, suspension alterations, or body repairs can all influence how a 7.35-15, F78-15, or H78-15 tire sits and clears the vehicle.

That is especially important on an older utility Jeep because many have been repaired or altered over the years for service use. Checking wheel width, steering clearance, and space around the fenders before changing size or construction helps avoid choosing a tire that clashes with the vehicle’s current setup.

Before putting a 1973 Jeep DJ5 back on the road with new tires, inspect the wheels for correct diameter and condition, confirm that lug hardware seats properly, and make sure the tire size matches the intended setup. It is also smart to look over steering and suspension components for looseness or visible wear.

A new set of tires cannot compensate for cracked wheels, poor alignment, or worn front-end parts. Tire pressure, bead seating, and clearances at full steering lock deserve a careful check too, particularly on a vehicle that may have sat for long periods or changed hands several times over the decades.

Collector tires on a 1973 Jeep DJ5 should be kept at appropriate pressure for the selected tire, inspected regularly for sidewall cracking, cuts, bulges, uneven wear, and slow air loss, and protected from long exposure to sunlight, heat, and moisture. Low-mileage collector vehicles still need routine tire checks.

Storage conditions matter almost as much as road use on a vintage Jeep. Moving the vehicle occasionally, avoiding prolonged parking on underinflated tires, and checking the tires before each drive help preserve both appearance and serviceability. Any sign of age-related deterioration deserves attention before the Jeep returns to regular road use.