1973 Chevrolet Corvette Tires

The 1973 Chevrolet Corvette marked the first model year after the chrome-bumper era up front, giving C3 buyers a Corvette that still carried unmistakable early-1970s character while moving into a new phase of design and regulation. For owners today, tire choice plays a big part in preserving that period look without losing sight of how the car will actually be driven. The 1973 Chevrolet Corvette uses a GR70-15 radial on a 15-inch rim. Within that size, available choices include bias-look radial designs, Goodyear series such as GM Custom Tread, Steelgard, and Custom Wide Tread, plus pin white stripe or raised white letter sidewalls. The right pick depends on whether appearance, road manners, and wheel compatibility are the priority.

Which Tire Size Is Right for The 1973 Chevrolet Corvette

The 1973 Chevrolet Corvette uses one primary tire size: GR70-15. It is a radial fitment on a 15-inch rim, and the covered Base model uses the same size, so the main decision is not which size fits but which GR70-15 tire best suits the car’s appearance, construction preference, and intended road use.

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GR70-15Alphanumeric radial
Fit(s): Base
Construction: RadialRim: 15 in

GR70-15 is an alphanumeric radial size in which the letter identifies the tire’s size class, the R denotes radial construction, the 70 indicates the profile family, and the 15 identifies the wheel diameter. On a 1973 Chevrolet Corvette, this size keeps the car in its proper 15-inch fitment while reflecting the period move toward radial technology. Available GR70-15 choices center on Goodyear offerings, with series such as GM Custom Tread, Steelgard, and Custom Wide Tread, along with pin white stripe and raised white letter sidewall treatments. Choosing among them comes down to the look you want, the wheel width in use, and how closely the tire’s presentation should match the car’s era.

Explore GR70-15 Tires

1973 Chevrolet Corvette Sub-Model Tires

Tire fitment is straightforward for the covered 1973 Chevrolet Corvette sub-model. The Base model uses the same primary size, so the focus shifts from size differences to selecting the right GR70-15 tire style, construction presentation, and wheel match.

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1973 Chevrolet Corvette Base

The 1973 Chevrolet Corvette Base uses the GR70-15 radial size on a 15-inch wheel. That makes tire selection more about choosing the right Goodyear series and sidewall style, while confirming that the wheel width on the car matches the tire being considered.

Associated Tire Sizes

Important Fitment Notes

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:

  • Wheel modifications (wider rims, offset changes, aftermarket wheels)
  • 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 1973 Chevrolet Corvette Tires for Sale

GR70-15 choices for the 1973 Chevrolet Corvette come from Goodyear and focus on bias-look radial construction, with GM Custom Tread, Steelgard, and Custom Wide Tread series available in pin white stripe and raised white letter styles. Wheel-width compatibility varies across the lineup, so that detail is worth comparing in the product grid.

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Goodyear Tires

Goodyear GM Custom Tread Pin White Stripe | GR70-15

Goodyear - GM Custom Tread

SIDEWALLPin-White-Stripe
RIM DIAMETER15 in
RIM WIDTH7.0 - 8.0 in
WEIGHT29 lb
MAX LOAD—
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Goodyear Tires

Goodyear Steelgard RWL | GR70-15

Goodyear - Steelgard

SIDEWALLRWL
RIM DIAMETER15 in
RIM WIDTH8 in
WEIGHT30 lb
MAX LOAD—
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Goodyear Tires

Goodyear SteelGard Pin White | GR70-15

Goodyear - Steelgard

SIDEWALLPin-White-Stripe
RIM DIAMETER15 in
RIM WIDTH7.50 - 8.0 in
WEIGHT29 lb
MAX LOAD—
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Goodyear Tires

Goodyear Power GM Custom Tread RWL | GR70-15

Goodyear - Custom Wide Tread

SIDEWALLRWL
RIM DIAMETER15 in
RIM WIDTH7.0 - 8.0 in
WEIGHT22 lb
MAX LOAD—
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Frequently Asked Questions

1973 Chevrolet Corvette tire questions usually come down to GR70-15 fitment, 15-inch wheel compatibility, sidewall and series selection, restoration-minded appearance, and the checks that matter before putting a collector Corvette back on the road.

Tire Size & Fitment

What tire size fits a 1973 Chevrolet Corvette?

The 1973 Chevrolet Corvette uses a GR70-15 radial tire. That is the primary size for the covered fitment, and the 1973 Chevrolet Corvette Base uses the same size rather than a separate tire specification.

That means the first step is confirming that the car still has its 15-inch wheel setup and that no later wheel or suspension changes have altered clearance. Once GR70-15 is confirmed, the real choice becomes sidewall style, tire series, and wheel-width compatibility within the available products rather than sorting between multiple factory tire sizes.

What size rim does a 1973 Chevrolet Corvette use?

The 1973 Chevrolet Corvette uses a 15-inch rim with its GR70-15 tire size. That rim diameter is central to the fitment because the tire size itself is built around a 15-inch wheel.

Rim diameter is only part of the picture, though. The available GR70-15 products also carry wheel-width requirements, and those vary within the lineup, so the actual wheel on the car should be checked before choosing a tire. That is especially important if the Corvette has aftermarket wheels or if the original wheels have been replaced over the years.

Does the 1973 Chevrolet Corvette Base use the same tire size?

Yes. The 1973 Chevrolet Corvette Base uses the same GR70-15 radial size as the covered 1973 Corvette fitment, so there is no separate primary tire size to sort out for that sub-model.

With the size staying the same, selection comes down to how the tire should look and how it matches the wheel on the car. A buyer can compare GR70-15 options by sidewall treatment, tire series, and wheel-width specification, then decide whether the Corvette is being kept close to a period presentation or set up for more general collector road use.

Choosing the Right Tire

What should I consider when choosing a GR70-15 tire for a 1973 Chevrolet Corvette?

Start with the basics: GR70-15 is the correct primary size, it fits a 15-inch wheel, and the available choices for this Corvette are radial designs with a bias-look presentation. Within that size, the main variables are wheel-width specification, sidewall style, and tire series.

A pin white stripe can give the car a different visual character than a raised white letter tire, even when the size is the same. It also helps to compare the actual wheel on the Corvette against the tire’s stated rim-width requirement, since some GR70-15 options are intended for slightly different wheel widths within the same diameter.

What sidewall styles are available for 1973 Chevrolet Corvette tires?

GR70-15 tires for the 1973 Chevrolet Corvette are available with pin white stripe and RWL sidewalls. RWL stands for raised white letter, giving owners two distinct period-style presentations within the same size category.

That choice affects the car’s overall appearance more than its basic fitment. A pin white stripe tends to suit a more restrained, restoration-oriented look, while raised white letters lean into a stronger 1970s performance feel. Once the preferred sidewall style is decided, the remaining checks are wheel-width compatibility and whether the selected series matches the car’s intended use.

What tire series are available for the 1973 Chevrolet Corvette?

The GR70-15 fitment for a 1973 Chevrolet Corvette includes Goodyear series such as GM Custom Tread, Steelgard, and Custom Wide Tread. Each series offers its own appearance cues while staying within the same overall size category for this Corvette.

Series choice should be evaluated alongside sidewall style and the wheel-width range the tire is built to use. That approach helps narrow the selection in a practical way, especially on a car that may have seen wheel changes over time. For many owners, the right series is the one that balances the Corvette’s visual era with the actual wheel setup on the car.

Restoration & Appearance

Which tire should I choose for a period-style 1973 Chevrolet Corvette?

A period-style 1973 Chevrolet Corvette should begin with the correct GR70-15 size and a tire that preserves the car’s 1970s visual character. The available GR70-15 options use bias-look radial construction, which helps maintain a traditional profile while still staying in a radial format.

From there, the decision usually comes down to sidewall treatment and series styling. Pin white stripe and raised white letter tires create noticeably different impressions on a C3 Corvette, even in the same size. For strict originality questions, the safest approach is to compare the car’s build history and marque-specific references before settling on one visual treatment.

How does tire construction affect the appearance of a restored 1973 Chevrolet Corvette?

Tire construction influences both stance and visual character on a restored 1973 Chevrolet Corvette. In this fitment, GR70-15 is offered as a bias-look radial, which is useful for owners who want a radial tire while still preserving a more traditional vintage appearance.

That matters because construction and sidewall presentation work together. A bias-look radial with pin white stripe can read very differently from one with raised white letters, even though both share the same size. On a restoration-minded Corvette, those differences are often as important as the mechanical fit, especially when the goal is an era-appropriate overall look.

Fitment, Maintenance & Road Use

Can modifications affect tire fitment on a 1973 Chevrolet Corvette?

Yes. A 1973 Chevrolet Corvette may still use the correct GR70-15 tire size on paper, but aftermarket wheels, altered wheel width, suspension changes, or ride-height changes can all affect how that tire fits on the car in practice.

Clearance at the fender, suspension, and steering components should be checked any time the Corvette no longer sits on its original-style wheel setup. Even within the same GR70-15 size, available tires have different wheel-width specifications, so a modified car should be measured carefully before settling on a particular tire.

What should I inspect before driving a 1973 Chevrolet Corvette on new tires?

Before road use, inspect the wheels, valve stems, lug hardware, and overall tire seating, and confirm that the GR70-15 tires match the 15-inch wheels on the car. It also helps to check for even clearance at full steering lock and through normal suspension movement.

A collector Corvette should also be looked over for issues beyond the tires themselves, including worn suspension parts, alignment concerns, or brake problems that can affect how the car behaves once new tires are installed. Tire pressure should be set appropriately, and a short local drive is a sensible way to verify that everything feels settled before longer use.

How should GR70-15 tires on a collector 1973 Chevrolet Corvette be maintained?

GR70-15 tires on a collector 1973 Chevrolet Corvette should be inspected regularly for air loss, tread wear, sidewall cracking, cuts, bulges, and any signs of age-related deterioration. Cars that spend long periods parked deserve extra attention because low annual mileage does not stop rubber from aging.

Storage conditions matter just as much as mileage. Keeping the Corvette away from prolonged sunlight, excess heat, moisture, and ozone sources can help preserve the tires between drives. It is also smart to recheck pressure before each outing, since a car that sits can lose air gradually and that can affect both handling and tire life.