Packard 5680 & 5688 Series Tires

The Packard 5680 & 5688 Series in this group uses 800-15 tires for the 1956 model year. The available products for that size are bias-ply tires built for 15-inch rims, with a listed rim width range of 6.00 to 6.50 inches. Both options are wide whitewall Coker Classic Bias Ply tires.

That makes fitment more straightforward than on many older collector cars, but it is still worth checking the actual wheels on the car. A Packard 5680 & 5688 Series that has had later wheel substitutions or long-ago restoration changes should be measured before replacing tires, especially when maintaining correct stance and sidewall appearance matters.

An 800-15 size on a Packard 5680 & 5688 Series is a numeric bias-ply size. The 800 indicates a nominal section width of about 8.00 inches, and the 15 identifies the wheel diameter in inches. On the products listed for this application, that size is matched to a 15-inch rim and a 6.00 to 6.50 inch rim width range.

Modern metric sizes communicate dimensions differently, so the older numeric system can look unfamiliar at first glance. If you are restoring a Packard 5680 & 5688 Series to a period look and feel, staying with the correct numeric bias-ply size helps preserve the original visual proportions, steering feel, and whitewall presentation expected from a mid-1950s luxury car.

The listed 800-15 tires for the Packard 5680 & 5688 Series are bias-ply products, and a tube is required. That requirement matches the construction and format of the available tires for this application. Tube selection should also match the tire size and the 15-inch wheel diameter.

When replacing tires on a Packard 5680 & 5688 Series, tube condition should be treated as part of the job rather than an afterthought. Old tubes, damaged flaps where applicable, or rough wheel surfaces can create problems even when the outer tire is new, so a careful wheel inspection and fresh service hardware are smart steps during installation.

The Packard 5680 & 5688 Series products listed here are offered with wide whitewall styling in two whitewall widths: 3.00 inch and 2.50 inch. Both are Coker Classic Bias Ply tires in 800-15. That gives buyers a choice in the visual proportion of the white stripe without changing the actual tire size.

For a Packard 5680 & 5688 Series restoration, whitewall width affects the car’s overall presentation as much as the wheel covers and ride height do. If originality matters, compare the tire’s whitewall width to period photos, surviving cars, or marque references so the finished car reflects the look you want rather than simply using the first available whitewall.

The available Packard 5680 & 5688 Series products in this fitment group come from one brand family: Coker Classic. Two 800-15 tires are listed, both in the Coker Classic Bias Ply series and both configured as wide whitewall tires for 15-inch wheels.

Because the current selection is concentrated in one brand family, the buying decision is less about choosing among multiple manufacturers and more about choosing the sidewall presentation that best suits your car. On a Packard 5680 & 5688 Series, that usually means deciding how prominent you want the whitewall to appear within an otherwise period-correct bias-ply fitment.

The listed Packard 5680 & 5688 Series products are all part of the Coker Classic Bias Ply series. That means the available options do not split across different construction families or performance-oriented series within this fitment group. The distinction here is sidewall width rather than a change in basic tire technology.

For a Packard 5680 & 5688 Series owner, that simplifies the choice considerably. If your goal is a period-correct driving experience and appearance, the series itself already points you toward the traditional bias-ply route, leaving you to focus on details such as whitewall width, wheel condition, and whether the car is being restored for show presentation or regular collector use.

A Packard 5680 & 5688 Series should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, ozone sources, and prolonged contact with petroleum products or solvents. Maintain inflation appropriate to the tire and vehicle, and keep the car on a clean surface rather than bare earth or damp concrete whenever possible.

Long periods of inactivity are hard on collector tires, especially on a heavy luxury car like the Packard 5680 & 5688 Series. Rolling the car periodically, using tire cradles, or slightly adjusting its position can help reduce flat spotting and sidewall stress, while routine cleaning helps preserve the appearance of wide whitewalls.

Tires on a Packard 5680 & 5688 Series should be inspected before each meaningful drive and more thoroughly several times during the year, even if the car sees limited mileage. Look for pressure loss, sidewall cracking, tread separation, uneven wear, and any signs that the tube or wheel may be causing trouble. Whitewall surfaces should also be checked for scuffing and age-related distress.

Collector cars often age their tires by time rather than distance, so low annual mileage should never be treated as proof that everything is fine. A careful pre-drive walkaround on a Packard 5680 & 5688 Series is one of the simplest ways to catch a problem early, particularly after seasonal storage or long periods parked under load.

Tires on a Packard 5680 & 5688 Series should be replaced when age, cracking, hardening, impact damage, persistent air loss, deformation, or structural concerns appear, even if the tread still looks usable. Collector-car tires often retain visual tread depth long after the rubber itself has aged beyond comfortable road service. Any tire that shows signs of deterioration in the sidewall or bead area deserves immediate attention.

That matters especially on a substantial mid-1950s car, where tire loads and road speeds can exceed what an aged casing should handle safely. If there is any question about serviceability, have the tires removed and inspected by a shop experienced with vintage bias-ply and tube-type applications before putting a Packard 5680 & 5688 Series back into regular driving rotation.

The fitment listed for the Packard 5680 & 5688 Series in this group is 800-15, and the currently available products are bias-ply wide whitewall tires in the Coker Classic Bias Ply series. That establishes the size and a period-appropriate construction style for a 1956 car. It does not create a brand-specific original equipment claim beyond the listed replacement options.

If absolute factory-correct presentation is important for your Packard 5680 & 5688 Series, use the 800-15 size as the starting point and then compare whitewall width and overall appearance against period literature, unrestored examples, and marque-club guidance. Authenticity on a car of this level often comes down to visual details as much as the numeric size itself.

Correct tire fitment can absolutely affect how a Packard 5680 & 5688 Series is received in both formal judging and knowledgeable private-sale circles. Judges and experienced collectors notice whether the car sits correctly, whether the sidewall treatment suits the era, and whether the construction style matches the character of the vehicle. Tire size errors can change stance and subtly alter the whole car’s presentation.

On a Packard 5680 & 5688 Series, that means the right 800-15 bias-ply fitment and an appropriate whitewall width can support the overall credibility of the restoration. If the car is being prepared for concours, club judging, or a high-level restoration review, compare your tire choice with marque standards and period images before final installation.

The available Packard 5680 & 5688 Series tires in this group are wide whitewall styles, offered in 3.00 inch and 2.50 inch widths. Both fit the same 800-15 size and both suit the visual language of an upper-end American car from 1956. The difference is not fitment, but the visual emphasis each whitewall width creates.

Choosing the correct look for a Packard 5680 & 5688 Series restoration usually comes down to the specific presentation you are aiming for. A broader whitewall can make the car appear more formal and period-luxurious, while a slightly narrower one can look a touch more restrained, so period photos and marque reference material are the best final tie-breakers.

Properly installed, correctly inflated, and well-maintained collector tires can be suitable for road use on a Packard 5680 & 5688 Series, provided the rest of the car is equally roadworthy. The listed options are bias-ply tires, so they should be used with the handling expectations of mid-1950s construction rather than modern radial behavior. Age, tube condition, wheel integrity, suspension condition, and brake performance all matter as much as the tread itself.

A Packard 5680 & 5688 Series should be driven within the limits of its period design and the actual condition of the whole vehicle. Before regular road use, confirm that the tires, tubes, wheels, steering, brakes, and alignment are all in sound condition, because a tire cannot compensate for deferred mechanical work elsewhere in the chassis.

Before driving a Packard 5680 & 5688 Series, check tire pressure, visible sidewall condition, tread surface, valve stems, and any signs of leakage or shifting at the bead area. On a tube-type bias-ply setup, it is also wise to watch for any indication that the car has been sitting on a partially deflated tire. A quick look at wheel attachment, brake response, and steering feel should be part of the same routine.

That short inspection matters because collector cars often spend more time parked than driven. With a Packard 5680 & 5688 Series, a few minutes in the garage before departure can reveal issues that would be easy to miss after weeks or months of inactivity, helping preserve both the tires and the car’s overall safety on the road.

A Packard 5680 & 5688 Series running period-style bias-ply tires should be driven at prudent, moderate speeds that respect both the tire construction and the mechanical condition of the car. Even when the vehicle is capable of modern traffic pace, bias-ply tires do not react like modern radials in lane changes, emergency maneuvers, or sustained high-speed travel. Smooth inputs and conservative cruising are part of using the car properly.

For practical use, think in terms of preserving stability and mechanical sympathy rather than testing the limits of a 1956 luxury car. If your Packard 5680 & 5688 Series will see frequent highway driving, make sure the entire chassis is sorted and approach speed as a matter of judgment, road conditions, and vehicle condition rather than assuming modern-tire behavior.