1989 Pontiac Firebird Tires

A 1989 Pontiac Firebird uses either 215/65R15 or 245/50R16, depending on the sub-model and wheel setup. Both are radial tire sizes, but they are not interchangeable choices for the page as a whole because different Firebird configurations use different rim diameters.

The practical first step is confirming the exact sub-model and checking whether the car has 15-inch or 16-inch wheels. A Base model uses 215/65R15, Formula and GTA variants use 245/50R16, and a Trans Am can appear with either size, so the wheel already on the car should always be verified before selecting tires.

The 1989 Pontiac Firebird uses either a 15-inch or 16-inch rim, depending on the tire size fitted to the car. The 215/65R15 tire requires a 15-inch wheel, while the 245/50R16 tire requires a 16-inch wheel.

That difference matters because wheel diameter is the first fitment checkpoint on this Firebird. Looking only at the model name is not enough, especially with the Trans Am appearing in both sizes. Check the actual wheel on the car and make sure the tire size matches that diameter before comparing sidewall style, tire series, or other product details.

The 1989 Pontiac Firebird has more than one tire size because fitment varies by sub-model and wheel package. The range includes 215/65R15 for certain 15-inch applications and 245/50R16 for configurations that use a 16-inch wheel, including Formula, Trans Am GTA, and Trans Am GTA SE.

That means tire selection is tied to the car’s exact configuration rather than to the Firebird name alone. On a Trans Am in particular, either size may be present, so the safest approach is to confirm both the sub-model and the actual wheel diameter on the vehicle before choosing between the available 15-inch and 16-inch radial tires.

For a 1989 Pontiac Firebird that uses 215/65R15, start with the correct wheel diameter and then compare the available radial choices by sidewall style, series, and rim-width specification. This size is offered in several distinctly different presentations, including OWL, RWL, Redline, and Wide Whitewall.

That variety makes this size especially useful for owners balancing late-1980s appearance with personal style. A BFGoodrich Silvertown Radial gives a very different visual result than a Goodyear Eagle GT or Cooper Cobra Radial G/T, even though the base size remains the same. Matching the tire’s look to the car’s intended character is just as important as matching the size.

Sidewall style depends on which tire size the 1989 Pontiac Firebird uses. In 215/65R15, available styles include OWL, RWL, Redline, and Wide Whitewall. In 245/50R16, the available choices center on Blackwall tires.

That creates two very different buying paths. The 15-inch size gives more visual flexibility for an owner who wants a traditional or customized presentation, while the 16-inch size stays closer to a later-model performance look. Choosing the right sidewall starts with confirming the correct size, then deciding whether the car should look understated, sporty, or more restoration-oriented.

Brands available for the 1989 Pontiac Firebird include Goodyear, Cooper, and BFGoodrich. The 215/65R15 size includes all three brands, while the 245/50R16 fitment shown here is represented by BFGoodrich blackwall performance tires.

Brand choice should be considered alongside the actual tire series, sidewall treatment, and wheel-width compatibility rather than as a stand-alone decision. On the 15-inch Firebird fitment, the available products span several different visual styles, while the 16-inch selection is narrower and more performance-focused, so the right brand often follows from the size and look you need.

A period-style 1989 Pontiac Firebird tire choice starts with using the correct size for the car’s sub-model and wheel diameter, then selecting a sidewall treatment that suits the look you want. For 215/65R15 cars, choices such as OWL, RWL, and Redline align more naturally with a late-1980s visual theme than a wide whitewall approach.

The most convincing result usually comes from matching size, stance, and sidewall style to the way the car would have been presented in its era, without assuming any single product is exact to every car built. Owners pursuing strict originality should compare tire appearance with marque references, period photos, and vehicle-specific documentation before making a final decision.

On a restored 1989 Pontiac Firebird, construction itself is less of a visual dividing line than sidewall style and profile, because the primary fitments here are radial sizes. The bigger appearance difference comes from whether the car wears 215/65R15 with options like OWL, RWL, Redline, or Wide Whitewall, or 245/50R16 in a blackwall performance presentation.

That means restoration-oriented buyers should think beyond the size code and consider how the tire fills the wheel opening and how the sidewall complements the car’s trim, wheel design, and intended era feel. A well-chosen tire can support a cohesive late-1980s presentation, while the wrong sidewall treatment can change the car’s character more than expected.

Yes, modifications can affect tire fitment on a 1989 Pontiac Firebird even when the tire size itself is correct for the model range. Aftermarket wheels, changes in wheel width, offset differences, lowered suspension, or body modifications can all alter clearance at the fender, steering, or suspension.

That matters most on a car like the Firebird because both 15-inch and 16-inch fitments appear within the same year and model family. A modified car should be checked as it sits, not only by catalog size. Wheel diameter, wheel width, and available clearance all deserve attention before mounting new tires, especially if the car no longer retains its original wheel setup.

Before driving a 1989 Pontiac Firebird on new tires, inspect the wheels for correct diameter and condition, confirm the tire size matches the car’s actual setup, and check for adequate clearance at full steering lock and through suspension movement. Lug hardware, valve stems, and overall wheel condition also deserve attention.

A collector-era Firebird may have sat for long periods or been changed over the years, so it is smart to look beyond the tires alone. Suspension wear, alignment condition, and uneven ride height can all affect how a new set behaves on the road. A careful once-over helps prevent rubbing, irregular wear, and avoidable fitment surprises on the first drive.

Tires on a collector 1989 Pontiac Firebird should be maintained with regular pressure checks, routine visual inspections, and attention to age-related condition as well as tread. Look for sidewall cracking, bulges, cuts, uneven wear, or slow air loss, especially if the car is driven infrequently or stored for long stretches.

Storage conditions matter almost as much as mileage on a low-use Firebird. Keeping the car away from prolonged sunlight, excess heat, moisture, and ozone sources can help preserve tire condition over time. It also helps to inspect the tires before longer drives rather than assuming low miles mean low risk, since aging often appears before tread wear does.