The 1971 Dodge Polara came at a moment when full-size Dodge cars still delivered big-body presence, long-wheelbase comfort, and the unmistakable character of early-1970s American motoring. Whether the car is a sedan, Brougham, or wagon, tire selection matters because this Polara uses several 15-inch bias-ply fitments depending on sub-model, including G78-15, H78-15, H70-15, J78-15, and L84-15. Available choices include traditional blackwall and whitewall presentations, with some sizes also offering modern radial equivalents for owners considering a different construction. The right decision starts with the exact Polara configuration, then balances appearance, road use, wheel compatibility, and restoration goals.
Which Tire Size Is Right for The 1971 Dodge Polara
The 1971 Dodge Polara uses five primary tire sizes, and the correct one depends on the exact sub-model. All of these fitments are bias-ply tires for 15-inch rims, so the first step is confirming whether the car is a wagon, Base & Custom 6 & 8 Cyl., or Brougham. Once that is settled, the real choice becomes selecting the right period-style tire, sidewall treatment, and whether a radial equivalent is worth considering for the sizes that offer one.
L84-15 is a vintage alphanumeric bias-ply size, with the letter indicating a larger size class, the 84 identifying its profile family, and the 15 calling for a 15-inch rim. On the 1971 Dodge Polara, this size appears on wagon sub-models and should be treated as a specific wagon fitment rather than a general Polara tire. Its importance is less about choosing among many visible product variations and more about confirming the exact sub-model before moving forward. That makes wheel confirmation and accurate wagon identification especially important on cars that may have seen changes over time.
G78-15 is a vintage alphanumeric bias-ply size where the letter identifies the tire's size class, the 78 refers to its profile family, and the 15 denotes a 15-inch rim. This bias-ply fitment is used on certain 1971 Dodge Polara Base & Custom 6 & 8 Cyl. applications and reflects the sizing language common to the period. Product choices include Coker Classic Bias Ply whitewall versions as well as an STA Super Traxion blackwall option. That gives buyers room to match the tire more closely to a restoration-oriented look or a more utilitarian presentation.
H78-15 is a vintage alphanumeric bias-ply size, with the letter designating the tire's size class, the 78 indicating the profile family, and the 15 matching a 15-inch wheel. On the 1971 Dodge Polara, it appears across Base & Custom 6 & 8 Cyl. and Brougham applications, making it one of the more broadly used sizes in this model range. Available tires include Coker Classic Bias Ply whitewall selections and an STA Traxion blackwall choice. That makes H78-15 a useful size for owners comparing traditional appearance, heavier-duty styling cues, and possible radial-equivalent alternatives.
H70-15 is a vintage alphanumeric bias-ply size in which the letter marks the tire's size class, the 70 identifies a lower profile family than a 78-series tire, and the 15 indicates a 15-inch rim. On the 1971 Dodge Polara, this is a Brougham-specific primary bias-ply fitment and should be matched carefully to the car's exact configuration. Even without a broad visible product assortment here, the size still matters because it points to a distinct fitment path within the Polara lineup. Buyers considering alternatives may also want to compare its available radial-equivalent formats before changing construction.
Tire fitment on the 1971 Dodge Polara varies by sub-model, so identifying the exact version of the car is the first real step. Every covered application uses a 15-inch bias-ply tire, but the actual size changes between wagon, Base & Custom 6 & 8 Cyl., and Brougham models.
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1971 Dodge Polara 2 Seat Wagon
The 1971 Dodge Polara 2 Seat Wagon uses wagon-specific bias-ply fitments and can take either J78-15 or L84-15. That makes exact wheel and existing tire verification especially important before choosing between a traditional whitewall presentation and a size-specific replacement path.
The 1971 Dodge Polara 3 Seat Wagon uses L84-15 as its primary bias-ply fitment. Tire selection here is less about comparing multiple primary sizes and more about confirming the wagon setup before choosing a replacement that suits the vehicle's intended appearance and use.
The 1971 Dodge Polara Base & Custom 6 & 8 Cyl. uses either G78-15 or H78-15 bias-ply tires, so this sub-model requires more than a quick visual assumption. The right choice depends on the actual wheel-and-tire setup on the car, then on whether the goal is a blackwall or whitewall period-style presentation.
The 1971 Dodge Polara Brougham uses H70-15 or H78-15 bias-ply fitments depending on the specific setup. Buyers should confirm which size is already on the car before comparing traditional bias-ply options or reviewing radial-equivalent choices for these sizes.
Bias-Ply to Radial Tire Conversion for the 1971 Dodge Polara
Several 1971 Dodge Polara bias-ply sizes have radial-equivalent alternatives. J78-15 corresponds to 225R15 as an 80-series metric radial, P235/75R15 as a 75-series P-metric radial, P235/70R15 as a 70-series P-metric radial, and 800R15 as a bias-look radial. G78-15 maps to 205R15, P215/75R15, P225/70R15, and 710R15, while H78-15 and H70-15 map to 215R15, P225/75R15, P235/70R15, and 760R15. These options span traditional-looking and lower-profile radial formats, and the cited rim-width range is 6 to 8 inches where given, so wheel width and vehicle clearance should still be checked.
Modern Radial Equivalents
225R15
Equivalent 80-series Metric Radial (J78-15)
P235/75R15
Equivalent P-metric 75-series Radial (J78-15)
P235/70R15
Equivalent P-metric 70-series Radial (J78-15)
800R15
Bias-look Radial Equivalent (J78-15)
205R15
Equivalent 80-series Metric Radial (G78-15)
P215/75R15
Equivalent P-metric 75-series Radial (G78-15)
P225/70R15
Equivalent P-metric 70-series Radial (G78-15)
710R15
Bias-look Radial Equivalent (G78-15)
215R15
Equivalent 80-series Metric Radial (H78-15)
P225/75R15
Equivalent P-metric 75-series Radial (H78-15)
P235/70R15
Equivalent P-metric 70-series Radial (H78-15)
760R15
Bias-look Radial Equivalent (H78-15)
215R15
Equivalent 80-series Metric Radial (H70-15)
P225/75R15
Equivalent P-metric 75-series Radial (H70-15)
P235/70R15
Equivalent P-metric 70-series Radial (H70-15)
760R15
Bias-look Radial Equivalent (H70-15)
Important Considerations When Replacing Bias Ply With Radial
Compare overall diameter and section width carefully to ensure proper fit.
Verify recommended rim range (6-8 in) and load needs match your vehicle specifications.
Check fender clearance, steering clearance, and stance before installation.
Consider suspension condition and intended road use when choosing equivalents.
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:
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 1971 Dodge Polara Tires for Sale
Available 1971 Dodge Polara tire choices focus on 15-inch bias-ply fitments from BFGoodrich, Coker Classic, and STA. Depending on size, buyers can compare Silvertown Classic Bias Ply, Coker Classic Bias Ply, Super Traxion, and Traxion offerings in blackwall, Narrow Whitewall, Dual-White-Stripe, and Wide Whitewall styles.
Common 1971 Dodge Polara tire questions usually come down to sub-model fitment, 15-inch rim compatibility, bias-ply sizing, radial-equivalent choices, and how to match sidewall style to the car's intended look and road use.
Tire Size & Fitment
What tire size fits a 1971 Dodge Polara?
The 1971 Dodge Polara does not use one universal tire size across the entire model range. Primary bias-ply fitments include J78-15, L84-15, G78-15, H78-15, and H70-15, all for 15-inch rims, with the correct size depending on the exact sub-model.
That means the first step is identifying whether the car is a 2 Seat Wagon, 3 Seat Wagon, Base & Custom 6 & 8 Cyl., or Brougham. On a car that has been restored or modified, it also helps to compare the existing wheel-and-tire setup before selecting a replacement, especially when more than one size was used within the Polara lineup.
What size rim does a 1971 Dodge Polara use?
The covered tire fitments for the 1971 Dodge Polara use a 15-inch rim diameter. That applies across the primary sizes associated with this model range, including the wagon, Base & Custom 6 & 8 Cyl., and Brougham applications.
Rim diameter is only part of the fitment picture, so it should not be treated as the only check. A 15-inch wheel still needs to match the intended tire size and should be verified for width and overall vehicle clearance, particularly on a Polara that may have replacement wheels or a different tire size fitted at some point in its life.
Why does the 1971 Dodge Polara have more than one tire size?
The 1971 Dodge Polara uses more than one tire size because fitment varies by sub-model. Wagon applications use different sizes than the Base & Custom 6 & 8 Cyl. and Brougham models, and some sub-models themselves were paired with more than one primary bias-ply size.
For a buyer, that means the model name alone is not enough to select a tire. The exact Polara configuration matters first, and the existing wheel setup should be checked before choosing between available whitewall, blackwall, or radial-equivalent options tied to the correct primary size.
Bias-Ply & Radial Options
Is H78-15 a bias-ply or radial tire for the 1971 Dodge Polara?
H78-15 is a primary bias-ply tire size for the 1971 Dodge Polara. It appears on certain Base & Custom 6 & 8 Cyl. and Brougham applications and uses the vintage alphanumeric sizing system common to American cars of this era.
That distinction matters because a bias-ply tire preserves the original sizing format and traditional construction style. Owners considering a radial alternative should treat that as a separate choice rather than the same thing in a different material, then verify wheel width, overall vehicle stance, and clearance before changing construction.
What radial tire sizes are equivalent to H78-15 on a 1971 Dodge Polara?
Radial equivalents for H78-15 include 215R15 as an 80-series metric radial, P225/75R15 as a 75-series P-metric radial, P235/70R15 as a 70-series P-metric radial, and 760R15 as a bias-look radial. These are alternative radial formats tied to the H78-15 primary size.
Each one approaches the original fitment a little differently in sizing convention and visual character, especially the bias-look radial. The recommended rim-width range tied to this equivalent group is 6 to 8 inches, and the final choice should still be checked against the car's wheels, suspension condition, and available steering and fender clearance.
What should I check before converting my 1971 Dodge Polara from bias-ply to radial tires?
Start by confirming the Polara's exact primary size and then matching it to a listed radial equivalent for that size. The wheel must still be the correct 15-inch diameter, and the equivalent being considered should suit the wheel width associated with that conversion path.
Construction changes should also be evaluated in the context of the actual car rather than the catalog size alone. A useful check includes wheel width, tire-to-fender clearance, steering clearance, suspension condition, and whether the goal is a more traditional appearance or a radial format that changes the visual presentation.
Choosing the Right Tire
What should I consider when choosing a G78-15 tire for a 1971 Dodge Polara?
A G78-15 tire for a 1971 Dodge Polara should first be chosen only after confirming that this is the correct size for the exact sub-model and wheel setup. From there, the main considerations are construction style, sidewall appearance, and whether the tire's character suits a restoration-oriented or more utilitarian presentation.
This size is available in whitewall and blackwall forms, including Coker Classic Bias Ply and STA Super Traxion offerings. Rim-width compatibility, load details where stated, and the overall look of the car should all be part of the decision, especially if the Polara no longer wears its original wheel-and-tire combination.
What sidewall styles are available for 1971 Dodge Polara tires?
Sidewall choices for 1971 Dodge Polara tires include Blackwall, Narrow Whitewall, Dual-White-Stripe, and Wide Whitewall, depending on the tire size. Those treatments appear across the available 15-inch bias-ply offerings tied to different Polara sub-model applications.
Sidewall style can change the car's visual character as much as the size itself, especially on a full-size early-1970s Dodge. The right choice depends on the specific tire size the car requires, then on whether the goal is a cleaner blackwall look, a traditional whitewall presentation, or a stripe treatment that complements the restoration direction.
What brands offer tires for the 1971 Dodge Polara?
Available tire brands for the 1971 Dodge Polara include BFGoodrich, Coker Classic, and STA. Brand availability depends on the primary tire size, with some sizes offering whitewall-focused passenger-car styling and others leaning toward blackwall or more utility-oriented bias-ply patterns.
The useful comparison is not simply the brand name but what each brand offers in the correct size. Looking at tire series, sidewall treatment, stated load figures where available, and rim-width compatibility gives a clearer picture of which option best matches the Polara's intended use and appearance.
Restoration & Appearance
Which tire should I choose for a period-style 1971 Dodge Polara?
A period-style 1971 Dodge Polara starts with the correct primary bias-ply size for the exact sub-model, not with a general full-size Dodge assumption. Once the size is confirmed, the next choice is whether the car looks more appropriate with a blackwall, whitewall, or striped sidewall treatment.
Bias-ply construction preserves the original-era sizing language and traditional presentation of the car. For owners pursuing a highly exact restoration, tire brand, stripe width, and sidewall treatment should be compared with marque references, period photography, or build-specific documentation rather than chosen only by size.
How does tire construction affect the appearance of a restored 1971 Dodge Polara?
Tire construction changes more than road feel on a restored 1971 Dodge Polara; it also affects the car's visual stance and period impression. A bias-ply tire keeps the vintage alphanumeric format and traditional look, while a radial equivalent introduces a more modern sizing convention and, at times, a different visual character.
That makes construction part of the restoration decision rather than only a driving decision. A buyer who wants the car to retain a distinctly early-1970s presentation will usually start with the correct bias-ply fitment, while someone open to a radial should review whether a bias-look radial helps preserve a more traditional appearance.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1971 Dodge Polara?
Modifications can absolutely affect tire fitment on a 1971 Dodge Polara, even when the tire size itself is correct for the original application. Aftermarket wheels, changes in wheel width, altered ride height, suspension work, or body repairs can all change how much room a tire has at the fender and steering points.
That matters even more on a Polara because the model used several different primary sizes across its sub-model range. Any car with non-original wheels or stance changes should be checked for actual rim dimensions and tire clearance before choosing a replacement or moving from a bias-ply fitment to a radial equivalent.
What should I inspect before driving a 1971 Dodge Polara on new tires?
Before driving a 1971 Dodge Polara on new tires, inspect the wheels, valve stems, tire pressure, and the general condition of the suspension and steering components. It also helps to confirm that the mounted tire size matches the car's sub-model fitment and that there is no contact at full steering travel.
A collector car that has spent long periods parked deserves extra attention after installation. Looking for rubbing, uneven ride height, air loss, and any sign that the wheels or suspension have been changed helps catch fitment issues early and makes the first road test more useful and much less guesswork-driven.
How should 1971 Dodge Polara tires be maintained on a collector car?
Tires on a collector 1971 Dodge Polara should be checked regularly for pressure, visible cracking, bulges, cuts, and uneven wear, even if the car is driven only occasionally. Low annual mileage does not stop tires from aging, and long storage periods can hide developing problems until the car is put back on the road.
Storage conditions matter almost as much as mileage on a full-size collector car. Keeping the Polara away from prolonged heat, direct sunlight, excess moisture, and ozone sources can help preserve the tires, while periodic inspections and short routine drives make it easier to spot air loss or clearance changes before a longer trip.