1971 International Pickup 1110 Tires

The 1971 International Pickup 1110 uses three primary bias-ply tire sizes: 700-15, G78-15, and H78-15. All three are 15-inch fitments, and both covered sub-models share that same size range rather than splitting into different sub-model-specific tire groupings.

That means the first step is confirming which wheel-and-tire setup is actually on the truck today, especially if it has been restored, modified, or repurposed for work or show use. Once the existing setup is confirmed, the decision usually shifts from basic size identification to choosing the right construction, sidewall style, and tire series for the truck’s intended look and use.

The primary tire sizes used on the 1971 International Pickup 1110 all mount on 15-inch rims. That applies to 700-15, G78-15, and H78-15, so the rim diameter remains consistent even though the tire sizing formats differ.

Rim diameter is only one part of the fitment picture, so it is still important to confirm the wheel width and the truck’s actual wheel setup before choosing a tire. That matters even more if the pickup has aftermarket wheels, changed suspension height, or a radial-equivalent conversion under consideration, since matching the 15-inch diameter alone does not settle every fitment question.

The covered 1971 International Pickup 1110 sub-models share the same tire-size range. Both the Base model with 1/2-20 studs and the Base model with 5/8-18 studs use 700-15, G78-15, and H78-15 bias-ply tire fitments.

That shared fitment simplifies the search, but it does not remove the need to inspect the truck’s present wheels and tires before ordering replacements. A vintage pickup may have changed wheels over the years, and sidewall style, tread character, and construction choice can all affect which option makes the most sense for a restoration, a work-truck look, or regular road use.

G78-15 is a bias-ply tire size on the 1971 International Pickup 1110. It uses the vintage alphanumeric bias-ply sizing system and serves as one of the truck’s primary 15-inch fitments rather than a modern radial size.

That matters because a buyer deciding on G78-15 is really deciding whether to keep the truck in its original-style construction or move to an equivalent radial format. Bias-ply tires preserve the traditional sizing language and presentation, while any move to a radial alternative should include a careful check of wheel width, overall tire dimensions, and clearance at the fenders and steering components.

G78-15 radial equivalents include 205R15, P215/75R15, P225/70R15, and 710R15 as a bias-look radial. H78-15 radial equivalents include 215R15, P225/75R15, P235/70R15, and 760R15 as a bias-look radial.

Those choices span an 80-series metric radial, a 75-series P-metric radial, a lower-profile 70-series P-metric radial, and a bias-look radial intended to keep a more traditional visual character. Recommended rim width for these equivalent paths is 6-8 inches, and any conversion should still be checked against the truck’s actual wheels, load needs, and available clearance before making the change.

Start by confirming the truck’s current wheel diameter and wheel width, then compare the intended radial-equivalent size to the original bias-ply size already on the vehicle. On a 1971 International Pickup 1110, radial-equivalent choices are available for G78-15 and H78-15, and those should be evaluated as alternatives rather than assumed replacements.

The next checks are practical: steering clearance, fender clearance, suspension condition, and whether the truck still has stock-style wheels or a modified setup. A pickup that has seen decades of repairs or upgrades can differ from one truck to the next, so the conversion decision should account for the actual wheel hardware and how the vehicle will be driven once back on the road.

A 700-15 choice starts with confirming that the truck is actually using that numeric bias-ply size on a 15-inch wheel. From there, the main variables are the tire’s intended character, since 700-15 is available in classic passenger-style whitewall and blackwall forms as well as military and truck-oriented series.

That range makes it important to match the tire to the pickup’s role rather than choosing by size alone. A restoration-minded truck may call for a traditional sidewall presentation, while a more utility-focused build may lean toward traction or transport-style tread patterns. Rim-width compatibility, load figures where stated, and tube-type or tubeless construction details are also worth comparing.

The available sidewall styles for 1971 International Pickup 1110 tires are blackwall and wide whitewall. Those choices appear across the applicable 15-inch sizes, with whitewall options concentrated in the classic bias-ply lines and blackwall options appearing in both traditional and more truck-oriented tires.

Sidewall style has a major effect on how the truck presents, especially on a restoration or period-style build. Wide whitewalls give a more styled, vintage look, while blackwalls tend to suit work-truck, utility, or military-inspired themes. Once the correct size is confirmed, sidewall selection usually becomes one of the easiest ways to align the tire choice with the pickup’s intended appearance.

Tires for the 1971 International Pickup 1110 are available from Firestone, BFGoodrich, Coker Classic, and STA. Brand availability varies by size, with 700-15 carrying the broadest mix and G78-15 and H78-15 centered around Coker Classic and STA offerings.

The practical takeaway is that brand choice is tied closely to size, tread style, and appearance. Some options lean toward classic bias-ply presentation with wide whitewalls, while others emphasize truck, military, traction, or highway character in blackwall form. After confirming the right size on the truck, compare the brand offerings by construction, sidewall style, and series rather than by name alone.

A period-style 1971 International Pickup 1110 usually starts with one of its primary 15-inch bias-ply sizes: 700-15, G78-15, or H78-15. Staying with the original-style bias-ply construction keeps the truck closer to the look and sizing language of its era, while still leaving room to choose between more passenger-style or truck-style tire presentations.

The right pick depends on how the truck is being finished. Wide whitewalls create a more dressed-up vintage look, while blackwall traction or highway tires give a more work-oriented appearance. When exact originality matters, the tire choice should be cross-checked against the truck’s restoration goals, existing wheels, and any vehicle-specific historical references relevant to the particular build.

Tire construction changes the visual character of a restored 1971 International Pickup 1110 as much as it changes the driving feel. A bias-ply tire preserves the traditional shape and period-style presentation associated with vintage truck fitment, while a radial alternative usually introduces a more modern sizing format and overall visual impression.

That difference matters most on builds where wheel opening stance, sidewall profile, and sidewall treatment are part of the restoration story. A bias-look radial can help bridge the gap for some sizes, but it should still be treated as an alternative rather than the same thing as a true bias-ply tire. Matching the construction to the truck’s visual goal is often as important as matching the size.

Yes, modifications can affect tire fitment on a 1971 International Pickup 1110 even when the tire size itself is correct. Changes to wheel width, wheel offset, suspension height, steering components, or body clearances can alter how a 700-15, G78-15, or H78-15 tire sits and moves through its full range of travel.

That is why a modified truck should be inspected as it exists today rather than judged only by original-size charts. Turning clearance, fender clearance, and the relationship between the tire and suspension components all deserve attention, especially if the pickup has aftermarket wheels or a radial-equivalent conversion. A careful physical check helps avoid surprises once the truck is back on the road.

Before driving a 1971 International Pickup 1110 on new tires, inspect the wheels for correct diameter and condition, make sure lug hardware matches the truck’s setup, and confirm that the chosen tire size suits the wheels actually installed. Tire pressure, visible seating at the rim, and any immediate signs of rubbing should also be checked before heading out.

A short initial drive is a good time to listen for contact during turns and to recheck inflation afterward. Vintage trucks also benefit from a broader once-over that includes steering play, suspension condition, and brake operation, since a fresh set of tires often reveals issues that were masked by old or worn rubber. Early inspection helps the whole combination work together properly.

Collector-truck tires in 700-15, G78-15, and H78-15 sizes should be kept properly inflated, inspected regularly for cuts, bulges, cracking, and uneven wear, and protected from long idle periods in harsh storage conditions. A 1971 International Pickup 1110 that sees occasional use still needs routine tire attention even if tread wear remains low.

Good maintenance also includes checking for slow air loss and looking at the sidewalls and tread after the truck has been parked for extended stretches. Storage away from prolonged sunlight, heat, moisture, and ozone-producing equipment helps preserve vintage tires and collector vehicles alike. Consistent inspection matters because age and inactivity can affect tire condition long before the tread appears worn out.