The 1933 La Salle 345C sits in the early Depression-era luxury field, carrying much of the elegant American design language that made La Salle a distinctive companion marque in Cadillac showrooms. For many owners today, the appeal is equal parts mechanical character, formal styling, and the experience of driving a true prewar automobile. Tire fitment for the 1933 La Salle 345C centers on one primary size, 700-17, in bias-ply construction on a 17-inch rim. Within that size, the choice comes down to period-style presentation, including blackwall, wide whitewall, and double-whitewall offerings across Firestone Balloon and Ensign B5 lines. That makes wheel confirmation, appearance goals, and road-use condition the real priorities.
Which Tire Size Is Right for The 1933 La Salle 345C
The 1933 La Salle 345C uses one primary tire size: 700-17 in bias-ply construction on a 17-inch rim. The covered 345C V8 sub-model follows that same fitment, so the main decision is not choosing between multiple primary sizes, but selecting the right period-style tire within 700-17 and deciding whether blackwall or whitewall presentation best suits the car.
In a numeric bias-ply size such as 700-17, the 700 identifies an approximate 7.00-inch nominal section width and the 17 identifies the wheel diameter in inches. This is a traditional bias-ply fitment that matches the prewar driving and visual character expected on a 1933 La Salle 345C. Available choices in this size include Firestone and Ensign products, with sidewall treatments ranging from blackwall to wide whitewall and double-whitewall, along with Firestone Balloon and Ensign B5 series options. It is the right size to evaluate when the goal is to keep the car on its proper 17-inch fitment while tailoring appearance and restoration style.
Sub-model fitment is straightforward for the 1933 La Salle 345C. The covered sub-model uses the same primary tire size, so confirming the exact version mainly helps keep the purchase aligned with the vehicle rather than sorting through different wheel diameters or alternate primary sizes.
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1933 La Salle 345C V8
The 1933 La Salle 345C V8 uses the same 700-17 bias-ply fitment as the model core. That keeps tire selection focused on period-style product choice, sidewall appearance, and checking that the car still has the correct 17-inch wheel setup before installation.
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 1933 La Salle 345C Tires for Sale
Available 700-17 choices for the 1933 La Salle 345C include Firestone and Ensign bias-ply tires in Firestone Balloon and Ensign B5 series, with blackwall, wide whitewall, and double-whitewall sidewall styles. Comparing the product grid is mainly about appearance, rim-width compatibility, weight, and load specification.
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Bias Ply
Firestone Balloon 4.25 Inch Double Whitewall | 700-17
These 1933 La Salle 345C tire FAQs focus on 700-17 fitment, 17-inch rim questions, period-style bias-ply choices, sidewall appearance, and the inspections that matter before putting a prewar collector car back on the road.
Tire Size & Fitment
What tire size fits a 1933 La Salle 345C?
The 1933 La Salle 345C uses a 700-17 tire size in bias-ply construction. That is the primary fitment for the model core, and the covered 345C V8 sub-model uses the same size as well.
That makes the buying decision more about choosing the right 700-17 tire style than sorting through multiple primary fitments. Before replacing tires, confirm that the car still has 17-inch wheels and has not been changed to a different wheel or suspension setup over the years.
What size rim does a 1933 La Salle 345C use?
The 1933 La Salle 345C uses a 17-inch rim with its 700-17 tire fitment. Product offerings in this size are built for 17-inch wheels, and the available rim-width specifications vary by tire series.
Wheel diameter is the first thing to verify on a prewar car that may have seen restoration work or long-term storage. After confirming the 17-inch rim, compare the actual wheel width to the tire's approved range so the selected 700-17 matches both the tire and the wheel correctly.
Does the 1933 La Salle 345C V8 use the same tire size?
Yes. The covered 1933 La Salle 345C V8 uses the same 700-17 bias-ply tire size as the model core. There is no alternate primary size tied to that sub-model here.
That consistency simplifies fitment, but it does not eliminate the need to inspect the actual car. Cars of this age are often restored, stored for long periods, or fitted with replacement wheels, so checking the wheel diameter and width remains worthwhile before choosing among blackwall or whitewall 700-17 options.
Choosing the Right Tire
What should I consider when choosing a 700-17 tire for a 1933 La Salle 345C?
Start with the correct 700-17 size and bias-ply construction, then compare the available tire series, sidewall style, rim-width specification, weight, and load rating. For the 1933 La Salle 345C, the visible choice is often between a more understated blackwall look and a stronger whitewall presentation.
The right selection depends on how the car is being used and how closely the owner wants to follow a period-style appearance. A touring car meant for casual road use may prioritize one look, while a restoration-oriented car may place more weight on sidewall style and overall visual balance with the body and wheel covers.
What sidewall styles are available for 1933 La Salle 345C tires?
The 1933 La Salle 345C has 700-17 tire options in blackwall, wide whitewall, and double-whitewall styles. Those choices allow the same primary size to take on a notably different visual character without changing the basic fitment.
Sidewall style matters because it can shift the car's presence from restrained and utilitarian to more formal and luxurious. The best approach is to match the tire's look to the car's restoration direction, wheel treatment, and trim level of detail rather than assuming one sidewall treatment belongs on every surviving La Salle.
What brands offer tires for the 1933 La Salle 345C?
The available 700-17 tires for the 1933 La Salle 345C come from Firestone and Ensign. Firestone offerings appear in the Firestone Balloon line, while Ensign is represented by the Ensign B5 series.
Brand alone should not be the only deciding factor on a prewar fitment like this. Compare the specific tire series, sidewall appearance, approved rim width, and load specification so the final choice suits both the car's visual presentation and the actual wheel setup now on the vehicle.
Restoration & Appearance
Which tire should I choose for a period-style 1933 La Salle 345C?
A period-style 1933 La Salle 345C starts with the correct 700-17 bias-ply fitment, since that preserves the proper prewar tire format and visual stance. From there, the main choices are among Firestone Balloon and Ensign B5 offerings and the sidewall treatment that best matches the restoration's intended look.
Blackwall, wide whitewall, and double-whitewall versions can each change the car's appearance noticeably while staying within the same primary size. When exact originality matters, it is smart to compare the tire choice against marque references, period photography, and restoration documentation for the specific car before making a final decision.
Does correct tire fitment matter for a 1933 La Salle 345C restoration?
Yes, correct tire fitment matters on a 1933 La Salle 345C because tire size, construction, and sidewall treatment strongly influence the car's stance and period presentation. Staying with the proper 700-17 bias-ply format keeps the wheel-to-tire relationship in the right visual range for a prewar luxury automobile.
Appearance is only part of the issue. Correct fitment also helps avoid mismatch between the tire and the wheel, which is especially important on an older restoration where wheels may have been repaired or replaced. A careful check of wheel diameter and width should accompany any appearance-driven tire decision.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1933 La Salle 345C?
Yes. Even though the primary fitment is 700-17, modifications can change what works on a 1933 La Salle 345C. Replacement wheels, altered wheel width, brake changes, suspension work, or body and fender repairs can all affect clearance and how a tire sits on the car.
A prewar vehicle may also have received parts substitutions long before the current owner acquired it. Measuring the actual wheel diameter and width, then checking steering and fender clearance with the car at normal ride height, is a better approach than assuming every surviving 345C still matches its original wheel setup.
What should I inspect before driving a 1933 La Salle 345C on new tires?
Inspect the wheels for damage, rust, cracks, or old repairs, and make sure the tire size and rim dimensions match the car's setup. It is also wise to check steering and suspension condition, because looseness, worn bushings, or alignment issues can make a freshly mounted set of tires behave poorly.
Road readiness on a collector car also means checking inflation pressure, lug security, valve stems, and general clearance through a full steering sweep. A short local test drive gives the owner a chance to listen for rubbing, feel for pull or vibration, and recheck the tires before putting the La Salle into longer service.
How should 700-17 tires on a collector 1933 La Salle 345C be maintained?
700-17 tires on a collector 1933 La Salle 345C should be inspected regularly for air loss, tread wear, sidewall cracking, bulges, and cuts, even if the car is driven only occasionally. Collector cars can age tires through time and storage conditions as much as through mileage.
Clean, dry storage away from prolonged sunlight, heat, and ozone sources helps preserve the tires between drives. It also helps to keep the car properly inflated, move it periodically to avoid long-term flat spotting, and give the tires a careful visual inspection before any road use after extended parking.
