Ford Squire Tires

Ford Squire models in this 1974 through 1976 group use two listed tire sizes: JR78-15 and LR78-15. Both sizes apply across all three years, and both are built around a 15-inch wheel diameter. The difference between them is the alphanumeric size class, with LR78-15 representing a wider class than JR78-15.

That means year alone does not identify the correct tire for every Ford Squire. Check the sidewall of the tire already on the car, confirm the wheel diameter, and compare the size against factory paperwork, restoration records, or a marque specialist if the car has been changed over the years.

A 1974 Ford Squire has two listed sizes because more than one configuration within that model year used different alphanumeric tire classes. Both JR78-15 and LR78-15 fit 15-inch wheels, so the split is not caused by a wheel diameter change. It reflects a specification difference within the Ford Squire range for that year.

The practical takeaway is that a 1974 Ford Squire owner should identify the exact configuration of the car rather than choosing by year alone. Original paperwork, surviving tire placard information, and the size presently fitted to the car are the best ways to sort out whether the wagon belongs on the narrower J-size or wider L-size tire.

The Ford Squire sizes listed here both use a 15-inch rim diameter. JR78-15 and LR78-15 are each 15-inch fitments, and the available LR78-15 product is specified for a 15-inch rim with an approved rim-width range of 5.50 to 8.00 inches. There is no wheel-diameter change across the listed 1974 to 1976 years.

Wheel diameter is still worth confirming on the actual car because many long-lived wagons have seen wheel swaps. Once 15-inch diameter is confirmed, the remaining fitment question is which alphanumeric size class belongs on the specific Ford Squire and whether the wheel width is appropriate for the tire being considered.

A 1975 Ford Squire can use either JR78-15 or LR78-15 within this model group, so the correct choice comes from the individual car's specification rather than the year by itself. Both sizes are 15-inch fitments, but they represent different alphanumeric width classes. The existing sidewall marking, wheel size, and any surviving vehicle paperwork should all agree before a tire is chosen.

Start by reading the current tire size if the car still carries a properly matched set, then verify the wheel diameter and overall stance of the wagon. If there is any doubt because of previous owner changes, compare against original manuals, window sticker records, or restoration references so the Ford Squire gets the right size and appearance.

The available Ford Squire product in this group is listed with a narrow whitewall sidewall style. That sidewall treatment appears on the LR78-15 Firestone Steel Belted 721, which is presented as a period-style radial option. No additional sidewall styles are listed within the current product set for these Ford Squire sizes.

For a mid-1970s Ford Squire restoration, a narrow whitewall generally suits the character of the car and preserves the look many buyers expect from a full-size wagon of the period. If appearance is as important as size, compare the sidewall width and overall profile of the replacement tire to the look you want the finished wagon to have.

The current Ford Squire product set lists one brand: Firestone. The available product is the Firestone Steel Belted 721 in LR78-15, using a bias-look radial construction and a narrow whitewall sidewall. No additional brands appear in the present set of products for these Ford Squire sizes.

Brand choice is only one part of the decision on a Ford Squire. The more important first step is making sure the car needs LR78-15 rather than JR78-15, then judging whether the available Firestone's construction style and sidewall look match the way the wagon will be restored, shown, and driven.

The Ford Squire products listed here show one tire series: Wide Oval Radial. That series appears on the Firestone Steel Belted 721 in LR78-15 and is described with a bias-look radial construction, blending a radial driving format with a period-inspired visual profile. No second or third series is listed for comparison within the current Ford Squire product set.

For the buyer, that means the key decision is less about comparing multiple series and more about confirming whether LR78-15 is the right size for the wagon. Once the size is verified, the remaining consideration is whether a radial with vintage appearance is the right match for the intended use of the Ford Squire.

A Ford Squire should be stored in a cool, dry, dark environment with the tires kept away from direct sunlight, electric motors, ozone sources, solvents, and fuel vapors. Clean the tires with mild soap and water only, and keep them properly inflated while the car is parked. Long-term storage on one spot can create flat-spotting, especially on collector vehicles that are seldom driven.

If the Ford Squire will sit for extended periods, move it occasionally or support it in a way that reduces continuous load on one section of the tire. Good storage habits matter as much as tread depth on a collector wagon, because age, environment, and inactivity often determine tire condition long before the tread is worn out.

Tires on a Ford Squire should be visually inspected before each drive and given a more thorough inspection several times a year. Check inflation pressure, tread wear, cracking, sidewall damage, impact marks, and any sign that one tire is aging differently from the others. On a heavier full-size wagon, uneven wear can also point to alignment or suspension issues that should not be ignored.

Collector cars often spend more time parked than driven, which makes routine inspection especially important. A Ford Squire that looks fine in the garage can still have age-related sidewall deterioration, internal damage from underinflation, or wheel and valve issues that only become obvious when the car is prepared carefully before road use.

Tires on a Ford Squire should be replaced when age, cracking, hardening, bulges, tread separation, or other structural concerns appear, even if the tread still looks deep. Collector-car tires often age out before they wear out because exposure, heat cycles, and long periods of sitting gradually degrade the casing and rubber. Tread depth alone is not a reliable measure of serviceability on an older wagon.

The right time to replace Ford Squire tires is before age-related deterioration turns into a failure on the road. If the wagon is used only occasionally, schedule periodic professional inspection and pay close attention to ride vibration, visible weather checking, and any change in how the car tracks or brakes.

Ford Squire models in this 1974 to 1976 group are associated here with JR78-15 and LR78-15 sizes, both on 15-inch wheels. The current product set includes a Firestone Steel Belted 721 in LR78-15 with a Wide Oval Radial series and narrow whitewall styling. That gives a strong period-correct direction for appearance, but the exact original tire for a specific wagon depends on the individual car's configuration.

For an accurate restoration, use the listed sizes as the starting point and then verify the exact original specification from factory literature, surviving labels, and marque references. Ford Squire wagons often varied by trim and equipment, so authenticity comes from matching the tire size and visual style to the particular car rather than relying on year alone.

Correct tire fitment can affect both presentation and judging on a Ford Squire because size, sidewall treatment, and overall stance strongly influence how authentic the wagon appears. A JR78-15 versus LR78-15 difference changes the visual proportion of the car, and a narrow whitewall can look much more era-appropriate than a modern generic replacement. Judges and knowledgeable buyers notice those details.

For a serious restoration, tire choice should be treated as part of the overall specification rather than an afterthought. Matching the right size and period-style appearance to the exact Ford Squire configuration helps the car look settled and credible, and marque clubs or judged-event standards are useful references when originality matters.

The listed Ford Squire product is offered with a narrow whitewall, which fits the character of a mid-1970s full-size American wagon. That sidewall style aligns well with the period look many restorers want, especially on a dressed-up Squire model where trim and presentation were part of the appeal. No alternate sidewall style is listed in the current product set for direct comparison.

A restorer should choose the sidewall style that matches the intended appearance of the specific Ford Squire, not simply any tire that fits the wheel. Period photos, brochures, and surviving original cars are the best visual references if the goal is a faithful restoration rather than a more generalized driver-quality presentation.

A properly matched, properly inflated tire in the correct Ford Squire size can be suitable for normal public-road use when the rest of the vehicle is equally roadworthy. The available LR78-15 product is a radial-style tire with period appearance, which generally suits practical driving better than a purely show-oriented tire. Tire safety, however, depends on age, condition, wheel integrity, alignment, brakes, and suspension as much as the size itself.

Before regular road use, make sure the Ford Squire has a matched set, sound wheels, correct pressures, and no signs of tire aging or structural damage. A large 1970s wagon places real load on its tires, so choosing the correct size and keeping the entire chassis in proper condition are both necessary for confident and predictable road manners.

Before driving a Ford Squire, check tire pressure, visible sidewall condition, tread condition, valve stems, wheel fasteners, and whether all four tires match in size and general type. Confirm that the wagon is fitted with either JR78-15 or LR78-15 as appropriate and that each tire is mounted on a 15-inch wheel. A quick walk-around can catch underinflation, weather checking, or impact damage before the car ever leaves the garage.

On a collector Ford Squire, tires should be part of a broader pre-drive routine that also includes brakes, steering feel, fluid leaks, and suspension response. Because these cars may sit for long periods, the first few miles should be treated as a shakedown, with attention paid to vibration, pulling, or any change in ride quality.

A Ford Squire should be driven at moderate, sensible speeds that respect the age, condition, and construction of the tires fitted to the car. Even with a period-style radial, an older full-size wagon is best treated as a collector vehicle rather than a modern high-speed touring car. Safe speed depends on more than the tire alone, including brake condition, steering accuracy, suspension health, and the age of the rubber itself.

The practical rule is to keep a Ford Squire within the pace that feels stable and composed for the whole car, not just what traffic allows. If the tires are older, the wagon has been sitting, or road surfaces are rough, slower speeds and shorter drives are the wise approach until the car has proven itself under careful inspection and use.