The 1975 Ford Granada arrived as Ford’s answer to buyers who wanted a compact-to-midsize American car with a more formal, upscale look than many economy sedans of the period. Whether kept as a clean survivor or restored as a well-preserved seventies cruiser, the Granada depends on getting its exact sub-model fitment right before choosing tires. This model uses DR78-14, ER78-14, or FR78-14 radial tires on 14-inch rims, depending on configuration. That means the decision is less about bias-ply versus radial conversion and more about matching the correct alphanumeric radial size to the car, then selecting the tire style that best suits its appearance and intended road use.
Which Tire Size Is Right for The 1975 Ford Granada
The 1975 Ford Granada uses three primary tire sizes: DR78-14, ER78-14, and FR78-14. All three are radial fitments for 14-inch rims, but the correct choice depends on the exact sub-model and engine combination. Before selecting a tire, the first step is confirming which Granada or Granada Ghia configuration you have, since not every version uses the same size.
DR78-14 is a vintage alphanumeric radial size. In this format, the letter designation identifies the size class, the R indicates radial construction, the 78 reflects the profile family, and 14 is the wheel diameter in inches. On the 1975 Ford Granada, this size belongs to certain 2- and 4-door models with 300 and 350 engines rather than the full model range. It is the right size to evaluate when restoring or maintaining one of those specific cars and wanting to keep the Granada on its proper 14-inch radial fitment.
Fit(s): 2 & 4 Dr. w/300 & 350 Eng., 2 & 4 Dr. w/302 Eng., Ghia 2 Dr. w/250 & 302 Eng., and Ghia 4 Dr. w/250 Eng.
Construction: Radial|Rim: 14 in
ER78-14 is also a vintage alphanumeric radial size, using the same basic sizing system with a lettered size class, radial construction, and a 14-inch rim diameter. For the 1975 Ford Granada, ER78-14 appears across several sub-models, including certain standard and Ghia versions, which makes it one of the more common fitments in the lineup. Buyers considering this size should first verify the exact Granada configuration, then focus on selecting a tire that matches the car’s intended appearance, ride character, and wheel setup.
Fit(s): 2 & 4 Dr. w/302 Eng., 2 & 4 Dr. w/351 Eng., Ghia 2 Dr. w/250 & 302 Eng., Ghia 2 Dr. w/351 Eng., Ghia 4 Dr. w/250 Eng., and Ghia 4 Dr. w/302 & 351 Eng.
Construction: Radial|Rim: 14 in
FR78-14 is a larger alphanumeric radial size in the same vintage format, with the final 14 again indicating a 14-inch wheel. On the 1975 Ford Granada, this size is used on several V8-equipped configurations and is the sole fitment for some 351-equipped models, while other sub-models may use either ER78-14 or FR78-14. That makes FR78-14 especially important to confirm by exact application rather than assumption. It is the size to evaluate when the goal is preserving proper radial-era fitment on the specific Granada you own.
Tire fitment for the 1975 Ford Granada varies by sub-model and engine combination rather than staying the same across the full range. Checking the exact Granada or Granada Ghia configuration matters first, because some versions allow more than one size while others use only a single 14-inch radial fitment.
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1975 Ford Granada 2 & 4 Dr. w/300 & 350 Eng.
This Granada configuration uses either DR78-14 or ER78-14 radial tires on 14-inch rims. Tire selection starts with confirming which of those two alphanumeric radial sizes belongs on the car, then choosing a replacement that suits its seventies touring appearance and road-use plans.
This version of the 1975 Ford Granada can use ER78-14 or FR78-14 radial tires. Because two primary sizes are associated with this sub-model, wheel and existing tire fitment should be checked carefully before choosing a replacement.
The 351-equipped 2- and 4-door Granada uses FR78-14 radial tires. With one main size tied to this configuration, the focus shifts from size selection to choosing the right tire within that fitment and confirming that the car still carries its proper 14-inch wheel setup.
This Granada Ghia 2-door configuration is associated with ER78-14 and FR78-14 radial fitments. That makes it important to verify the exact setup on the car before replacement, especially on restored or modified examples where wheel changes may have occurred over time.
The 351-powered Granada Ghia 2-door uses FR78-14 radial tires. Buyers working with this sub-model can concentrate on selecting a tire that matches the car’s formal, upscale presentation while keeping the correct alphanumeric radial size in place.
This four-door Granada Ghia with the 250 engine uses either ER78-14 or FR78-14 radial tires. The key step is confirming which size is already matched to the car’s wheels before selecting a tire for preservation, regular cruising, or a restoration-oriented appearance.
The Granada Ghia 4-door with 302 or 351 engines uses FR78-14 radial tires. Since this sub-model points to one primary size, tire choice is mainly about staying with the proper 14-inch radial fitment and selecting the product style that best suits the car.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Frequently Asked Questions
Common questions for the 1975 Ford Granada usually center on which of the three 14-inch radial sizes applies, how sub-model fitment changes by engine combination, and what to inspect before putting a collector-era Granada back on the road.
Tire Size & Fitment
What tire size fits a 1975 Ford Granada?
The 1975 Ford Granada uses DR78-14, ER78-14, or FR78-14 tires, depending on the exact sub-model and engine combination. All three are vintage alphanumeric radial sizes designed for 14-inch rims, so the correct choice is tied to the specific Granada or Granada Ghia configuration rather than the model name alone.
That means the first step is identifying the exact version of the car before ordering tires. A 351-equipped Granada may use FR78-14 only, while other versions can be associated with two different primary sizes. It is also smart to confirm the wheel currently on the car, especially if it has been restored, modified, or has worn replacement tires from an earlier owner.
What size rim does a 1975 Ford Granada use?
The 1975 Ford Granada uses 14-inch rims with its primary tire sizes. DR78-14, ER78-14, and FR78-14 all share the same 14-inch wheel diameter, which simplifies one part of the fitment question even though the car still has multiple tire sizes across different sub-models.
Wheel diameter is only part of the check. Before replacing tires, confirm that the car still has the correct 14-inch wheels and that the wheel width and overall setup match the tire being considered. On collector cars, aftermarket wheels, trim-level swaps, or long-ago service replacements can leave a Granada wearing a different wheel than expected.
Why does the 1975 Ford Granada have more than one tire size?
The 1975 Ford Granada has more than one tire size because fitment varies by sub-model and engine combination. Depending on the exact car, the primary radial tire can be DR78-14, ER78-14, or FR78-14. Some configurations are tied to a single size, while others are associated with two possible sizes.
That variation makes exact identification important before choosing tires. A Granada Ghia, a standard Granada, and different engine pairings do not all point to one universal fitment. The most practical approach is to match the car’s specific configuration first, then compare the current wheel and tire setup so the replacement size aligns with the way the vehicle is actually equipped today.
Choosing the Right Tire
What should I consider when choosing a DR78-14, ER78-14, or FR78-14 tire for a 1975 Ford Granada?
Start with the exact tire size that belongs to the specific 1975 Ford Granada sub-model. DR78-14, ER78-14, and FR78-14 are all correct primary sizes within the Granada line, but they are not universal across every configuration. The right choice begins with matching the car’s proper alphanumeric radial size and 14-inch wheel diameter.
After size is confirmed, consider how the car will be used and presented. A careful survivor, a restoration-oriented sedan, and a regularly driven cruiser may all call for slightly different priorities in tire appearance and road manners. It is also worth checking the current wheel dimensions and overall clearance so the selected tire suits the actual setup on the car.
How do I choose between the available DR78-14, ER78-14, and FR78-14 tires for a 1975 Ford Granada?
The main choice is not between those three sizes as alternatives, but between the one that belongs on your exact Granada and the tire options available within that size. DR78-14, ER78-14, and FR78-14 each serve different sub-models, so the correct path is to identify the proper fitment first rather than selecting by appearance alone.
Once the correct size is established, compare the tire’s overall character against your goals for the car. A Granada kept close to its original seventies look may call for a traditional presentation, while a driver-focused car may put more emphasis on fresh, properly matched radial fitment. Wheel condition, suspension state, and intended mileage should also factor into the final decision.
What tire series are available for the 1975 Ford Granada?
The 1975 Ford Granada uses vintage alphanumeric radial sizes, so tire selection is centered first on matching DR78-14, ER78-14, or FR78-14 to the proper sub-model. Within this page’s fitment range, the more important distinction is the size itself and how it aligns with the exact Granada configuration rather than a broad mix of series choices.
For most buyers, that means evaluating the available tires by their fitment role and the style they bring to the car, not by assuming one series belongs to every Granada. Once the correct size is confirmed, compare the products in that fitment for the kind of look and road use you want, while keeping the car’s 14-inch wheel setup and overall condition in mind.
Restoration & Appearance
Which tire should I choose for a period-style 1975 Ford Granada?
A period-style 1975 Ford Granada starts with the correct primary size for the exact car: DR78-14, ER78-14, or FR78-14. Because all of these are vintage alphanumeric radial sizes, they already align well with the Granada’s mid-seventies character. The most authentic-looking result usually comes from keeping the proper size and overall tire format in place.
Appearance choices should follow fitment, not replace it. A standard Granada and a Granada Ghia may not share the same size, and some configurations have more than one primary fitment to verify. If originality is especially important, compare the car against period photography, marque-club guidance, or other vehicle-specific references before settling on the final tire presentation.
Does correct tire fitment matter for a 1975 Ford Granada restoration?
Correct tire fitment matters on a 1975 Ford Granada restoration because the tire size influences both the car’s appearance and the way the finished vehicle sits on its wheels. Using the proper DR78-14, ER78-14, or FR78-14 fitment for the exact sub-model helps preserve the Granada’s intended seventies stance and presentation.
It also keeps the restoration grounded in the right configuration instead of treating every Granada the same. Since some versions use one size and others are associated with two, the restorer should confirm the exact sub-model and current wheel setup before mounting tires. That extra step is especially helpful on cars that have changed hands many times or received cosmetic updates over the years.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1975 Ford Granada?
Yes, modifications can affect tire fitment on a 1975 Ford Granada even when the correct original size is known. Aftermarket wheels, suspension changes, ride-height alterations, brake updates, or bodywork repairs can all change the available space around a DR78-14, ER78-14, or FR78-14 tire and influence how that tire sits on the car.
A Granada that has been lowered, fitted with different wheels, or repaired after damage should be checked for steering clearance, fender clearance, and overall wheel compatibility before new tires are installed. On an unmodified car, the proper factory-type size remains the starting point. On a changed car, the existing setup should be measured and inspected rather than assumed.
What should I inspect before driving a 1975 Ford Granada on new tires?
Before driving a 1975 Ford Granada on new tires, inspect the wheels for damage, confirm that the wheel diameter matches the required 14-inch fitment, and make sure the tires are mounted in the correct DR78-14, ER78-14, or FR78-14 size for the car. It is also important to verify proper inflation and look over the valve stems and wheel sealing surfaces.
A collector-era Granada also benefits from a broader roadworthiness check. Examine steering and suspension components, look for uneven wear that could point to alignment issues, and confirm there is no rubbing at full lock or over suspension movement. A short local test drive is a smart way to catch vibration, pull, or clearance problems before taking the car on a longer trip.
How should DR78-14, ER78-14, or FR78-14 tires on a collector 1975 Ford Granada be maintained?
Tires on a collector 1975 Ford Granada should be maintained with regular pressure checks, routine visual inspection, and attention to age-related condition even if the car is driven only occasionally. DR78-14, ER78-14, and FR78-14 tires should be examined for cracking, cuts, bulges, irregular wear, and signs of slow air loss before and after periods of storage.
Storage conditions matter almost as much as mileage on an older hobby car. Keeping the Granada away from prolonged sunlight, excess heat, moisture, and ozone sources can help preserve the tires between drives. It is also wise to move the car periodically or adjust storage practice to avoid long-term flat spotting, then reinspect the tires carefully before returning the car to regular road use.
