The 1984 Subaru GL came from an era when Subaru's compact cars had already earned a reputation for practicality, light weight, and all-weather usefulness, especially in 4WD form. Buyers looking at one today are often balancing preservation with real road use, whether the car is a sedan, wagon, hatchback, or Turbo model. Tire fitment for the 1984 Subaru GL centers on two 13-inch radial sizes: 175/70R13 and 185/70R13, with the correct size depending on the sub-model. Available choices range from understated blackwall radials to restoration-minded whitewall and redline options, so the important step is matching the tire to the exact body style and wheel setup before choosing appearance or series.
Which Tire Size Is Right for The 1984 Subaru GL
The 1984 Subaru GL uses two primary tire sizes, and the right one depends on the specific sub-model. Both are radial tires for 13-inch rims, so the key decision is not construction type but confirming whether your GL takes 175/70R13 or 185/70R13 before comparing brands, sidewall style, and product character.
185/70R13 is a metric radial size in which 185 represents nominal section width in millimeters, 70 is the aspect ratio, R identifies radial construction, and 13 is the wheel diameter in inches. On the 1984 Subaru GL, this size is used on certain sub-models and reflects the car's later-classic compact radial fitment. Available choices include BFGoodrich, Avon, Dunlop, Michelin, and Vredestein, with blackwall, redline, and wide whitewall presentations across several series. This size is the one to evaluate when your GL uses the wider 13-inch setup and you want to compare appearance as well as driving purpose.
175/70R13 is also a metric radial size, with a 175-millimeter nominal section width, a 70-series profile, radial construction, and a 13-inch rim diameter. For the 1984 Subaru GL, it serves specific sub-models that use a slightly narrower primary fitment than the 185-width version. In this size, the available product selection centers on Avon in the CR6ZZ series with a blackwall sidewall style. This is the size to confirm when matching a sedan hardtop or wagon configuration that did not use the wider 185/70R13 tire.
Sub-model fitment matters on the 1984 Subaru GL because tire size changes across the hatchback, sedan, wagon, and Turbo variations. Before choosing a tire, confirm the exact GL configuration so the correct 13-inch radial size is matched to the car.
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1984 Subaru GL Hatchback (4WD)
The 1984 Subaru GL Hatchback (4WD) uses the wider of the two primary 13-inch radial fitments offered across the GL range. That makes size confirmation straightforward, after which the decision shifts to blackwall versus period-style sidewall treatments and the tire series that best matches how the car will be driven.
The 1984 Subaru GL Sedan Hardtop uses the narrower 13-inch radial fitment found on selected GL sub-models. Tire selection here is mostly about staying with the proper size and checking wheel width compatibility before choosing among the available product style and intended road-use character.
The 1984 Subaru GL Turbo uses the 185/70R13 radial size rather than the narrower 175-width alternative. That gives the owner a broader range of product choices, including several blackwall options along with redline and wide whitewall styles for a more distinctive presentation.
The 1984 Subaru GL Wagon uses the 175/70R13 radial fitment. With one primary size attached to this sub-model, the main task is verifying that the wheels are still the original 13-inch diameter before selecting a tire for road use, preservation, or a clean stock-style appearance.
The 1984 Subaru GL Wagon (4WD) uses 185/70R13 radial tires. Owners of these wagons should confirm that the vehicle still carries the correct 13-inch wheels, then compare the available tire series and sidewall presentations according to whether the goal is understated utility or a more restoration-oriented look.
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.
Best 1984 Subaru GL Tires for Sale
Available 1984 Subaru GL tire choices focus on radial construction in 13-inch sizes, with 185/70R13 offering the broadest comparison across BFGoodrich, Avon, Dunlop, Michelin, and Vredestein. Depending on size, buyers can compare blackwall, redline, and wide whitewall styles along with differing rim-width specifications and tire series.
Common 1984 Subaru GL tire questions usually come down to confirming the correct 13-inch radial size by sub-model, then comparing sidewall style, brand, wheel fitment, and road-use considerations before installation.
Tire Size & Fitment
What tire size fits a 1984 Subaru GL?
The 1984 Subaru GL uses either 185/70R13 or 175/70R13, depending on the sub-model. Hatchback (4WD), Turbo, and Wagon (4WD) models use 185/70R13, while the Sedan Hardtop and Wagon use 175/70R13. Both are radial tire sizes built for 13-inch wheels.
The important next step is matching the tire to the exact GL body style and drivetrain configuration rather than assuming every 1984 GL used the same size. If the car has been modified with different wheels, verify actual wheel diameter and width before choosing between the two factory-type size categories.
What size rim does a 1984 Subaru GL use?
The tire fitments used on the 1984 Subaru GL are built around a 13-inch rim diameter. Both 175/70R13 and 185/70R13 share that same wheel diameter, which simplifies fitment compared with vehicles that changed both tire size and rim diameter across trim levels.
That shared 13-inch diameter does not mean every wheel is automatically the same in width or condition. It still helps to check the wheel itself, especially on an older Subaru that may have seen replacement wheels over the years, because tire selection should also account for proper rim-width range and vehicle clearance.
Why does the 1984 Subaru GL have more than one tire size?
The 1984 Subaru GL has more than one tire size because fitment varies by sub-model. Some versions use 175/70R13, while others use 185/70R13, even though both remain 13-inch radial tires. The difference is tied to the specific GL configuration rather than a universal size for the whole model line.
That means the first fitment question is always which GL you have: Sedan Hardtop, Wagon, Wagon (4WD), Hatchback (4WD), or Turbo. Once that is confirmed, tire shopping becomes much easier because you can narrow the decision to the correct width and then compare brand, sidewall style, and intended use.
Choosing the Right Tire
What should I consider when choosing a 185/70R13 tire for a 1984 Subaru GL?
For a 1984 Subaru GL that uses 185/70R13, start with the correct sub-model and confirm that the car still has 13-inch wheels. From there, the choice comes down to tire series, rim-width compatibility, sidewall appearance, and whether the car is being kept mostly stock in presentation or driven more regularly.
This size offers the broadest selection, including BFGoodrich, Avon, Dunlop, Michelin, and Vredestein products. Some options lean toward a traditional blackwall look, while others add redline or wide whitewall styling. Comparing those differences alongside wheel width and the general condition of the suspension helps narrow the best match for the car.
What sidewall styles are available for 1984 Subaru GL tires?
Sidewall style depends on the tire size chosen for the 1984 Subaru GL. In 185/70R13, available styles include blackwall, redline, and wide whitewall. In 175/70R13, the available product uses a blackwall sidewall, so appearance choices are more limited in that narrower size.
That matters because sidewall treatment changes the car's visual character even when the tire size remains correct. A blackwall keeps the presentation understated, while redline or wide whitewall options create a stronger period-style impression. Appearance should still come after size confirmation, since the wrong width can create fitment issues even if the sidewall style looks right.
What brands offer tires for the 1984 Subaru GL?
Tire options for the 1984 Subaru GL include BFGoodrich, Avon, Dunlop, Michelin, and Vredestein, depending on size. The larger 185/70R13 fitment has the widest brand coverage, while 175/70R13 is represented by Avon. All of the available choices are radial tires for 13-inch applications.
Brand alone should not decide the purchase. It helps to compare which series each brand offers in the correct size, whether the sidewall style suits the look of the car, and whether the wheel width falls within the tire's usable range. Those details often matter more than the badge on the sidewall.
Restoration & Appearance
Which tire should I choose for a period-style 1984 Subaru GL?
A period-style 1984 Subaru GL starts with the correct sub-model tire size, either 175/70R13 or 185/70R13, both in radial construction. After that, the choice depends on the look you want to preserve. Blackwall tires keep the presentation close to a straightforward 1980s compact, while redline or wide whitewall options create a more stylized appearance.
Owners focused on authenticity should confirm what appearance suits their particular car before deciding purely on style. The 185/70R13 size offers more visual variety, but the right tire still needs to match the wheel and sub-model. Restoration-minded selection is strongest when size, stance, and sidewall presentation all work together.
How does tire construction affect the appearance of a restored 1984 Subaru GL?
On the 1984 Subaru GL, construction is less of a visual debate than on earlier collector cars because the primary fitments are already radial. The appearance difference comes more from sidewall treatment and tread character than from choosing between bias-ply and radial, since radial construction is the correct type for this application.
That gives a restoration-minded owner room to focus on presentation within the proper size instead of trying to recreate an earlier-era tire look. A plain blackwall keeps the car restrained and functional, while redline or wide whitewall choices can make the GL stand out more. Wheel condition and ride height still shape the final visual result.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1984 Subaru GL?
Yes, modifications can affect tire fitment on a 1984 Subaru GL even when the nominal tire size is correct. Aftermarket wheels, changes in wheel width, altered ride height, suspension work, or body modifications can all change how a 175/70R13 or 185/70R13 tire sits and clears the car.
A GL with replacement wheels should be checked for actual rim diameter and width before mounting tires. It also helps to inspect steering travel and fender clearance, especially on 4WD models or cars with worn suspension parts. Small compact cars are sensitive to changes in wheel setup, so verification matters before road use.
What should I inspect before driving a 1984 Subaru GL on new tires?
Before driving a 1984 Subaru GL on new tires, inspect wheel condition, lug hardware, valve stems, and basic tire pressure. It is also smart to check for suspension wear, uneven ride height, or alignment issues that could affect how the new 13-inch radial tires contact the road.
A short test drive should include listening for rubbing and watching for steering pull or vibration. Older collector-era compacts often spend long periods parked, so it is worth looking over wheel bearings, brakes, and any signs of air loss after installation. Catching those issues early helps the new tires wear evenly and run as intended.
How should tires on a collector 1984 Subaru GL be maintained?
Tires on a collector 1984 Subaru GL should be maintained with regular pressure checks, routine visual inspection, and attention to age as well as tread. A car that sees only occasional use can still develop sidewall cracking, flat spotting, or slow air loss long before the tread appears worn out.
Storage habits matter just as much as mileage on an older Subaru. Keeping the car away from prolonged sun, excess heat, moisture, and ozone sources helps protect the rubber over time. It also helps to inspect the tires before each outing and after longer storage periods so any condition change is caught early.
