Packard 726 Series Tires
Packard 726 Series belongs to the great late pre-war period, when Packard was building refined American automobiles known for engineering quality, smooth road manners, and formal coachwork. Produced for 1930, Packard 726 Series sits in an era when tire sizing can look familiar at first glance yet still confuse a modern buyer because period markings do not read like later numeric or radial sizes. Tire selection is not entirely straightforward here because more than one size appears for the same model year, and the size code itself does not reveal the wheel diameter. Before choosing a tire for a Packard 726 Series, the first step is confirming the actual rim diameter on the car.
Packard 726 Series Tire Size Guide
Packard 726 Series uses 2 distinct tire sizes across the 1930 model year. These sizes use antique diameter-by-section notation, so the leading number is the tire's overall outside diameter rather than the wheel diameter. That distinction matters here because both listed sizes fit 20-inch rims, which must be confirmed from the wheel or product specifications rather than assumed from the size code.
30X5.77 is one of the listed 1930 Packard 726 Series sizes and represents a period passenger-car fitment for that model year. The 30 indicates an overall tire diameter of about 30 inches, the 5.77 indicates section width, and the wheel diameter is not part of the size code. Choose 30X5.77 only after confirming that marking against the tire or factory literature for the specific car, since antique sizing can overlap visually with other period sizes.
30X5 is also listed for the 1930 Packard 726 Series and is supported here by available products for that application. The 30 indicates overall tire diameter, the 5 indicates section width, and the available products for this size fit a 20-inch rim rather than a 30-inch wheel. Choose 30X5 when the car is confirmed for that period size and 20-inch wheel, and because the available products are bias-ply designs, a tube is required.
Packard 726 Series Tires by Year
The year listing breaks Packard 726 Series tire fitment down by model year so you can match the car to the correct size before moving on to product selection. In 1930, two sizes are listed, so the year alone is not enough and the specific wheel and original fitment reference should be checked. The leading number in each size code is the tire's outside diameter, not the wheel size, which is why confirming the rim itself is especially important on Packard 726 Series.
1930 Packard 726 Series
- 30X5.77
- 30X5
Best Packard 726 Series Tires for Sale
Available Packard 726 Series tire products cover 2 brands and 2 products across the listed sizes. Confirm the exact size and the 20-inch rim diameter on the car before selecting, especially if period-correct blackwall or wide whitewall appearance matters.
30X5 Products
These are the available products for 30X5.
Frequently Asked Questions
The FAQ below focuses on the two period tire sizes used on Packard 726 Series, how antique size markings translate to actual wheel fitment, and how to choose between available bias-ply blackwall and wide whitewall options.
Size Basics & Fitment
Packard 726 Series uses two listed tire sizes for 1930: 30X5.77 and 30X5. The available product listings tied to 30X5 use a 20-inch rim, which is an important point because antique size markings identify overall tire diameter and section width rather than wheel diameter. That means a Packard 726 Series owner should not read the leading 30 as the wheel size.
The practical next step is to match the car's existing wheel and any surviving tire markings to one of those two sizes. If the car already carries 20-inch wheels and period-style passenger tires, 30X5 is the size with current product support here. If the car is marked 30X5.77, compare that designation carefully against original Packard references or a marque specialist before making a final selection.
On a Packard 726 Series, 30X5 is an antique diameter-by-section size. The first number, 30, refers to the tire's approximate overall outside diameter in inches, while the second number, 5, refers to section width. The wheel diameter is separate from the size code, and the available 30X5 products here are built for 20-inch rims.
That format catches many modern buyers because it does not work like later metric or alphanumeric sizing. When identifying a replacement for Packard 726 Series, read the sidewall size, then verify the wheel itself rather than assuming the tire code includes the rim diameter. Since the available 30X5 products are bias-ply tires, they are used with tubes and should be mounted with proper period-compatible components.
A 1930 Packard 726 Series can show two listed sizes because more than one period tire specification appears for that same model year. In this case, the year listing includes 30X5.77 and 30X5, which means the correct choice depends on the specific wheel and how the individual car was equipped. The year by itself does not narrow the fitment to one universal size.
Owners should treat the model year as a starting point, then inspect the wheel and any surviving tire or service markings on the car. If the car already has a known original-style setup, preserving that size is usually the cleanest path for restoration consistency. If the car's history is unclear, original Packard literature or an experienced Packard specialist can help separate the correct size from a later substitution.
The Packard 726 Series uses antique tire size notation, so the rim diameter is not stated in the size code itself. For the available 30X5 products, the rim diameter is 20 inches. That is why a size such as 30X5 should be read as a 30-inch overall tire with a 5-inch section width, not as a 30-inch wheel application.
Before fitting replacement tires to Packard 726 Series, physically confirm the wheel diameter on the car or compare it with trusted Packard references. Antique wheels and tires are easy to misread if the owner relies only on the sidewall format. Getting the rim diameter right first prevents choosing a tire that looks close in naming but is wrong for the wheel.
Buying the Right Tire
The 1930 Packard 726 Series has two listed sizes, 30X5.77 and 30X5, so confirmation should start with the car rather than the model year alone. Check any original tire markings, wheel dimensions, older service records, or restoration notes that stayed with the car. The currently listed products are tied to 30X5 on a 20-inch rim, which gives a concrete reference point if the car already wears that setup.
A careful owner will compare the existing wheel and tire information with Packard factory literature or club guidance before choosing between the two sizes. That matters most on a restored car where visual correctness and wheel compatibility both count. If the car's history is mixed or incomplete, preserving whatever verifiable original evidence remains is usually the safest approach.
The available Packard 726 Series products in 30X5 include both blackwall and wide whitewall sidewall styles. One option is a Hartford blackwall tire, while another is a Firestone wide whitewall tire. Both are bias-ply period-style offerings built around the same 20-inch rim size.
That gives a Packard 726 Series owner some flexibility depending on whether the goal is a more restrained factory-era look or a more formal whitewall presentation. The right choice depends on the car's restoration theme, surviving historical evidence, and how the owner wants the finished car to read visually. Sidewall appearance should be chosen only after the size and wheel diameter are confirmed.
The available Packard 726 Series products here come from two brands: Hartford and Firestone. Hartford is represented by the Hartford Airplane in 30X5, while Firestone is represented by a 3.75 Inch Whitewall in 600-20, also identified as 30X5. Both are bias-ply tires for 20-inch rims.
Brand choice on Packard 726 Series often comes down to appearance, preferred series, and restoration goals rather than simple size alone. A blackwall Hartford and a wide whitewall Firestone can create noticeably different final looks even when the underlying fitment is the same. Once the correct size is established, comparing brand presentation is the next useful step.
Two tire series appear in the available Packard 726 Series products: Hartford Aero and Firestone Classic Bias Ply. Both are bias-ply, period-style tires in the 30X5 application for 20-inch rims, but they differ in brand identity and sidewall presentation. The Hartford offering is a blackwall, while the Firestone option is a wide whitewall.
For a Packard 726 Series owner, that means the series choice is largely about period look and restoration character rather than switching from one construction technology to another. If the car is being judged or restored to a specific visual standard, compare the sidewall treatment against period photographs and surviving evidence from the car itself. If the goal is a clean touring presentation, either series still requires the correct wheel and tube setup.
Maintenance & Longevity
Packard 726 Series should be stored on a clean, dry surface away from direct sunlight, ozone sources, and sustained heat. Keeping the tires properly inflated, the car clean, and the storage area stable in temperature helps reduce casing stress and sidewall degradation. On a collector car of this era, long periods in one position can also create flat spotting and unnecessary strain on the tire structure.
If the car will sit for extended periods, move it periodically or support it in a way that reduces continuous load on one contact patch. Owners of Packard 726 Series often benefit from a seasonal inspection routine that includes checking inflation, tube condition, and any signs of cracking around the bead and sidewall. Good storage habits matter as much as mileage on a low-use pre-war car.
Tires on a Packard 726 Series should be inspected before each meaningful drive and more thoroughly at regular intervals even if the car sees very little mileage. A pre-war bias-ply tire can age out long before the tread is worn, and tube-related issues may not show obvious warning signs until the car is moving. Inspection should cover air pressure, sidewall condition, bead area, valve stems, and overall casing shape.
A practical schedule is a quick check every time the Packard 726 Series is taken out and a deeper inspection at least a few times each year. Cars that attend tours, concours events, or long-distance transport deserve an especially careful look beforehand. If anything appears unusual, such as bulging, sidewall checking, or repeated pressure loss, the tire should be evaluated before the car returns to the road.
Packard 726 Series tires should be replaced when age, cracking, hardening, separation, impact damage, or persistent air loss shows that the casing is no longer trustworthy, even if the tread still looks usable. Collector-car tires often spend more time aging than wearing, so visual condition and service history matter more than tread depth alone. Any tire of uncertain age deserves closer scrutiny on a pre-war automobile.
That is especially important on Packard 726 Series because bias-ply tires, tubes, and older wheels all work together as a system. A car that only appears at events can still need new tires simply because time has overtaken the old ones. When in doubt, replacing aged tires before they fail is far less costly than repairing bodywork or rare chassis parts after a preventable problem.
Restoration & Authenticity
Packard 726 Series is associated here with two period tire sizes for 1930: 30X5.77 and 30X5. The available replacement products support the 30X5 application, with period-style bias-ply offerings from Hartford and Firestone. That establishes the style of tire family used on the car, but the exact original specification for an individual Packard 726 Series should still be matched to the car's own surviving evidence.
For restoration work, the best approach is to use the car's wheel measurements, old tire markings, and Packard literature together rather than assuming one size fits every surviving example. That matters because both listed sizes belong to the same model year. A careful restoration gains authenticity when the tire choice agrees with the specific car rather than with a broad year-only assumption.
Correct tire fitment can absolutely affect how a Packard 726 Series is judged and perceived, especially on a car restored to formal concours or marque-club standards. Size, sidewall style, and overall stance all influence whether the finished car looks authentically proportioned. Even when a tire physically fits the wheel, the wrong width or visual treatment can change the character of the car.
On Packard 726 Series, that means the owner should think beyond simple drivability and consider whether blackwall or wide whitewall presentation matches the restoration goal. Judges and experienced enthusiasts tend to notice tires immediately because they are so visible. If authenticity matters, align the final choice with Packard club guidance, period photos, and any evidence tied to the individual automobile.
Packard 726 Series currently has available products in both blackwall and wide whitewall form within the 30X5 application. Either style can create a convincingly period appearance depending on the car's trim, presentation, and restoration objective. Sidewall style is therefore a visual authenticity decision as much as a tire selection decision.
A restrained restoration may favor the blackwall look, while a more formal or highly presented Packard 726 Series may suit a wide whitewall more naturally. The strongest reference is always the individual car's original evidence, followed by period photographs and marque knowledge. Once the correct size and 20-inch rim fitment are established, sidewall choice becomes one of the most important finishing details.
Safety & Road Use
A properly fitted modern-production bias-ply tire in the correct size can be suitable for careful public-road use on a Packard 726 Series when the rest of the car is mechanically sound. Tire safety on a pre-war automobile depends not only on the tire itself, but also on wheel condition, tube integrity, brake performance, steering accuracy, and suspension health. Any mismatch in those systems changes the safety picture quickly.
Packard 726 Series should be driven with the expectations appropriate to a 1930 automobile rather than a modern car. That means conservative speeds, generous braking distance, and close attention to road surface and vehicle behavior. A fresh set of correct tires improves confidence, but it does not change the fundamental driving limits of a large pre-war machine.
Before driving a Packard 726 Series, check tire inflation, visible sidewall condition, valve stems, wheel security, and any signs of tube-related pressure loss. A quick walk-around should also include looking for cuts, bulges, or bead issues, particularly on a car that has been parked for long periods. Because the Packard 726 Series uses period-style bias-ply tires, a small issue can become a larger one if ignored.
It is wise to pair that tire check with a broader mechanical review of brakes, steering play, and fluid condition before any road outing. Pre-war cars reward deliberate preparation. A few minutes spent checking the Packard 726 Series before moving it can prevent roadside trouble and helps preserve both the car and its hard-to-replace components.
Appropriate speed for a Packard 726 Series on period-style tires should be governed by the car's age, chassis condition, road conditions, and the behavior of the specific tire and wheel setup rather than by modern traffic expectations. Even with correct replacement tires, a 1930 Packard was engineered for a different motoring world. Smooth, moderate running is far more appropriate than sustained high-speed use.
In practice, Packard 726 Series owners should let handling feel, braking confidence, and tire condition set the pace, and should avoid treating the car like a modern highway cruiser. Long downhill grades, rough pavement, and hot weather all increase stress on an antique touring car. Respecting those limits is one of the best ways to keep both the car and its tires in good order.