1973 Jeep Wagoneer Tires

A 1973 Jeep Wagoneer uses either F78-15 or H78-15, depending on the sub-model and vehicle configuration. Both are vintage alphanumeric bias-ply sizes designed for 15-inch rims, so the correct starting point is matching the exact size used on your Wagoneer rather than assuming every 1973 example takes the same tire.

The Custom - J100 uses F78-15, while the J100 can use F78-15 or H78-15. That makes the tire decision less about brand first and more about confirming the sub-model, checking the wheel diameter, and verifying what is currently on the vehicle before comparing bias-ply products or radial-equivalent alternatives.

The tire sizes used on the 1973 Jeep Wagoneer are built around a 15-inch rim diameter. Both F78-15 and H78-15 share that wheel diameter, which simplifies the first fitment check compared with vehicles that used multiple rim diameters across the same model year.

Rim diameter is only part of the picture, especially on older Jeeps that may have seen wheel changes over the years. A buyer should still confirm the actual wheel width and the tire size already mounted, since moving between F78-15, H78-15, or a radial equivalent can involve different wheel-width considerations and clearance checks.

The 1973 Jeep Wagoneer appears with more than one primary tire size because fitment varies within the model range. F78-15 is used on the Custom - J100, while the J100 is associated with both F78-15 and H78-15, so the exact configuration determines which size should be considered first.

That variation matters because the two sizes are not just different labels on the same tire. Before choosing a replacement, confirm the sub-model, inspect the current wheel and tire combination, and compare it with the setup already on the vehicle, especially if it has had wheel, suspension, or appearance-oriented changes during its life.

F78-15 is a bias-ply primary tire size on the 1973 Jeep Wagoneer. It uses the vintage alphanumeric sizing system rather than a modern metric format, so an F78-15 tire keeps the vehicle in its original-era construction category unless a separate radial equivalent is chosen instead.

That distinction matters because a bias-ply tire and a radial equivalent are different construction types even when they serve the same general size role. Anyone considering a change should confirm wheel width, compare overall fit on the vehicle, and decide whether the priority is traditional appearance and feel or a radial alternative in a modern sizing format.

Radial equivalents for F78-15 are 195R15, P205/75R15, P215/70R15, and 670R15. Radial equivalents for H78-15 are 215R15, P225/75R15, P235/70R15, and 760R15. In each group, the options span an 80-series metric radial, a 75-series P-metric radial, a 70-series P-metric radial, and a bias-look radial alternative.

Those equivalent sizes give a 1973 Jeep Wagoneer owner several ways to move from a vintage bias-ply code into radial sizing. The next step is checking the actual wheel and tire setup on the Jeep, because the recommended rim-width ranges differ between the F78-15 and H78-15 equivalent families and clearance still needs to be verified.

A bias-look radial can be considered on a 1973 Jeep Wagoneer because both primary sizes have one available. The bias-look radial equivalent for F78-15 is 670R15, and the bias-look radial equivalent for H78-15 is 760R15, giving the vehicle a radial construction in a more traditional visual format.

That option can appeal to owners who want a vintage presentation without staying strictly with bias-ply construction. Even so, a bias-look radial is still a radial tire, so the wheel width, overall fit on the Jeep, and clearance at steering and suspension travel should be checked before making the switch.

Start with the exact tire size the Wagoneer uses, because 1973 fitment can be either F78-15 or H78-15. After size is confirmed, the next considerations are whether to stay with bias-ply construction or evaluate a radial equivalent, and whether the vehicle's purpose leans more toward restoration presentation or regular road use.

Product selection becomes more specific once those basics are settled. Compare the tire's intended look, the wheel-width requirements, the available sidewall style, and any load figure that matters for how the Jeep is used, especially since a wagon or utility vehicle may place different demands on its tires than a show-only vehicle.

Available 1973 Jeep Wagoneer products in H78-15 include both wide whitewall and blackwall sidewall styles. The wide whitewall choices come from the Coker Classic line, while the blackwall option appears in the STA Traxion range, creating a clear visual difference even before tread design enters the decision.

That sidewall choice changes the character of the vehicle more than many owners expect. A wide whitewall tends to suit a more traditional or restoration-oriented presentation, while a blackwall truck-style tire can better match a utility-focused Wagoneer, so the right pick depends on how the Jeep is being finished and used.

Current product choices for the 1973 Jeep Wagoneer include Coker Classic and STA in H78-15. Coker Classic appears in wide whitewall bias-ply form, while STA offers the Traxion bias-ply blackwall, so the brand choice also overlaps with a difference in sidewall appearance and tire character.

A helpful way to compare these options is to look beyond the brand name alone. Focus on the correct size, the visual style you want on the vehicle, the tire series, wheel-width compatibility, and the kind of driving the Wagoneer will actually see, since those factors matter more than a simple brand preference.

A period-style 1973 Jeep Wagoneer usually starts with the correct primary bias-ply size for the exact sub-model, either F78-15 or H78-15. Staying in the original alphanumeric sizing format preserves the vehicle's era-appropriate tire presentation more closely than jumping immediately to a modern metric code.

From there, the better choice depends on the look you want the Wagoneer to carry. A wide whitewall creates a more dressed, passenger-oriented presentation, while a blackwall bias-ply can lean more toward truck utility, and owners pursuing exact originality should compare their choice with marque-specific historical references.

Tire construction affects more than ride and handling on a restored 1973 Jeep Wagoneer; it also changes the overall visual impression. A bias-ply tire keeps the Wagoneer in its original-era construction style, while a radial equivalent introduces a more modern format even when overall sizing is chosen to remain in the same general fitment range.

That makes construction part of the restoration decision, not just a technical one. Buyers who want a traditional stance and period-style presentation often begin with bias-ply sizing, while those balancing appearance with radial availability may consider a bias-look radial after confirming that the wheel and vehicle setup support the change.

Yes, modifications can affect tire fitment on a 1973 Jeep Wagoneer even when the tire size itself is correct for the model range. Aftermarket wheels, altered wheel width, suspension changes, lift or lowering adjustments, and body modifications can all change how an F78-15, H78-15, or radial equivalent sits within the vehicle.

That is why older utility vehicles should be checked as they actually exist today, not only as they left the factory decades ago. A careful inspection of wheel diameter, wheel width, steering clearance, and fender space helps prevent choosing a tire that matches the paper size but creates problems on the vehicle.

Before driving a 1973 Jeep Wagoneer on new tires, inspect the wheels, valve stems, and overall mounting condition, then confirm that the tire size matches the intended fitment. It also helps to check lug torque, inflation pressure, and visible clearance around the suspension, steering components, and wheel openings once the Jeep is back on the ground.

A collector-era vehicle deserves a broader safety check before returning to regular road use. Look for worn steering parts, aged suspension bushings, uneven ride height, and anything that could cause rubbing or irregular tire wear, because a fresh set of tires performs best when the rest of the chassis is equally ready.

F78-15 or H78-15 tires on a collector 1973 Jeep Wagoneer should be maintained with regular pressure checks, visual inspections, and attention to age-related deterioration as well as tread wear. Low-use vehicles can develop cracking, flat spotting, or hidden air loss simply from long storage, so condition matters as much as mileage.

Good collector care also means storing the Wagoneer away from prolonged sunlight, moisture, and ozone sources when possible. Periodic inspections of sidewalls, tread surface, and general ride quality help catch issues early, and any sign of bulging, cuts, repeated pressure loss, or unusual vibration deserves immediate attention before road use.