1979 Dodge Tire Fitment Guide

1979 Dodge vehicles use 31 different sizes across 14 model lines. Aspen uses D78-14, DR78-14, ER78-14, and FR78-14; B200 & Maxi uses L78-15 and LR78-15; Challenger uses 195/70R14; Colt uses 165R13, 600-13, 155R13, 175/70R13, 6.15-13, and 165R14; D100 Pickup uses FR78-15, HR78-15, and LR78-15; D150 Pickup uses 700-15, L78-15, and LR78-15; D50 uses 6.00-14 and 185R14; Diplomat uses FR78-15; Magnum XE uses FR78-15, GR78-15, and HR78-15; Omni uses 165/75R13, 185/70R13, and 155/80R13; Pickup uses 800-16.5, 875-16.5, 950-16.5, 8.75R16.5, 8.00R16.5, 700-15, L78-15, and LR78-15; Ramcharger uses FR78-15, HR78-15, LR78-15, 700-15, L78-15, and 10-15; Sportsman Wagon uses ER78-15, FR78-15, GR78-15, HR78-15, LR78-15, J78-15, H78-15, 8.75R16.5, 800-16.5, and 875-16.5; and St Regis uses 175/75R15 and 205/75R15.

Rim diameter is the quickest way to narrow the search. The 1979 Dodge range spans 13-, 14-, 15-, and 16.5-inch wheels, and several truck and van lines mix more than one wheel diameter or construction type. If your Dodge falls into a model family with several possibilities, confirm the model first and then verify the actual wheel before choosing between bias-ply and radial options.

L78-15 is an alphanumeric bias-ply size used on certain 1979 Dodge B200 & Maxi, D150 Pickup, Pickup, and Ramcharger applications. In that format, the letter-and-number combination identifies the tire's traditional size class, while the 15 means it mounts on a 15-inch rim. Available L78-15 tires use bias-ply construction, carry load ratings of 1,970 pounds at 32 psi, and fit rim widths from 5.50 to 8.00 inches on the products that state wheel width guidance.

That format matters because L78-15 is not the same thing as LR78-15. The added R in LR78-15 indicates radial construction, even though both share the same 15-inch wheel diameter and similar period appearance. If your 1979 Dodge uses one of these alphanumeric truck or van sizes, the code tells you both the wheel diameter and whether you are looking at a traditional bias-ply fitment or a radial alternative.

No. 1979 Dodge covers everything from the Colt and Omni compacts to full-size trucks, vans, and the St Regis sedan, so tire size varies widely by model. Some models have a single fitment, like the Challenger with 195/70R14 or the Diplomat with FR78-15, while others have several possible sizes. The Dodge Pickup and Sportsman Wagon are especially broad, with both 15-inch and 16.5-inch applications and a mix of bias-ply and radial sizing formats.

That means year and make alone are rarely enough for a confident tire choice on 1979 Dodge vehicles. A Colt, Aspen, Ramcharger, and Sportsman Wagon can all require completely different sizes and constructions. The safest approach is to identify the exact model first, then confirm the wheel diameter and compare the tire code on the vehicle to the available size family before ordering.

Choose L78-15 if your 1979 Dodge calls for the bias-ply alphanumeric fitment and you want the traditional construction used on many period truck and van applications. Choose LR78-15 if your Dodge uses the radial version of that same 15-inch alphanumeric family. Both fit a 15-inch rim, and both appear on B200 & Maxi, D150 Pickup, Pickup, and Ramcharger applications, while LR78-15 also appears on D100 Pickup and Sportsman Wagon models.

The real difference is construction character, not just size coding. L78-15 keeps the older bias-ply format that many restorers prefer for a period presentation, while LR78-15 gives you a radial in a bias-look style that better reflects late-1970s radial adoption. Before choosing between them, verify the actual size requirement on your vehicle and make sure the wheel width falls within the tire's approved range.

1979 Dodge tire choices cover a broad spread of sidewall treatments, including blackwall, narrow whitewall, wide whitewall, redline, goldline, and even dual-white-stripe in certain sizes. L78-15 comes in blackwall, narrow whitewall, and wide whitewall, 700-15 in blackwall and wide whitewall, 185/70R13 in blackwall, redline, and wide whitewall, J78-15 in narrow whitewall and dual-white-stripe, H78-15 in blackwall and wide whitewall, and 205/75R15 in narrow whitewall, wide whitewall, and goldline.

The right style depends on the kind of Dodge you are restoring or preserving. Compact economy cars usually look most natural on plain blackwalls, while late-1970s full-size sedans, personal-luxury coupes, and many vans can plausibly wear whitewalls or decorative sidewall treatments. If originality matters for show judging, match not only the size and construction but also the sidewall appearance to the way your specific model would have been presented in its market and trim level.

1979 Dodge applications are covered by a wide brand mix that includes Coker Classic, BFGoodrich, Firestone, Dunlop, Michelin, Avon, Pirelli, Vredestein, STA, Phoenix, Travelstar, Maxxis, Tornel, and American Classic. Some sizes are tightly focused, such as LR78-15 through Firestone or 175/70R13 through Avon, while others offer broader choice. Examples include 700-15 from Firestone, BFGoodrich, and STA; 165R14 from Pirelli, Michelin, and Vredestein; 185R14 from Michelin, Phoenix, and Vredestein; and 205/75R15 from BFGoodrich, Tornel, and American Classic.

Brand choice often follows the kind of Dodge you own and the look you want. A truck buyer may lean toward STA or Firestone in heavier-duty bias-ply sizes, while a compact or imported Dodge owner may focus on Michelin, Pirelli, Dunlop, or Vredestein for metric radial fitments. Once you know your size, compare the available sidewall style, speed symbol, and rim width guidance before deciding between brands.

Rim width varies significantly by size on 1979 Dodge vehicles. L78-15 and LR78-15 fit 5.50 to 8.00-inch rims, 700-15 fits 5.00 to 5.50, 600-13 fits 4.00 to 4.50, 165R13 fits 4.50 to 6.00, 155R13 fits 4.00 to 5.50, 175/70R13 fits 4.5 to 6.0, 165R14 spans 4.0 to 6.0 depending on brand, 185R14 spans 4.00 to 6.50, 185/70R13 spans 4.5 to 6.5, 155/80R13 spans 4.00 to 5.50, 800-16.5 fits 6.00 to 6.50, 950-16.5 fits 6.50 to 6.75, J78-15 and H78-15 fit 5.50 to 7.00, and 205/75R15 fits 5.50 to 7.50.

That width range matters because two tires that share the same rim diameter may still expect different wheel widths. A 15-inch Dodge wheel from one model line is not automatically interchangeable with every other 15-inch Dodge fitment. Before mounting any tire, confirm both wheel diameter and wheel width so the tire sits correctly and preserves the handling and appearance intended for that size family.

Tube requirements vary by size and product on 1979 Dodge applications. Several metric radial products are clearly marked TL for tubeless use, including 165R13, 155R13, 165R14, and 185R14 in certain versions. Other sizes do not carry an explicit tube marking in the tire description, so you should not assume every tire in the same size family uses the same setup. Bias-ply truck and passenger tires especially deserve a closer look at the individual sidewall specification before final installation.

The wheel itself matters just as much as the tire. A tubeless-marked radial still needs a wheel condition suitable for tubeless service, while some older wheels or restoration situations may call for a tube even when the tire is otherwise tubeless-capable. Check the exact sidewall marking on the tire you choose and inspect the wheel condition before deciding on tubes, flaps, or tubeless installation.

No, not across the entire 1979 Dodge range. Original wheels can only be reused when the rim diameter matches the tire size, and this year spans 13-inch, 14-inch, 15-inch, and 16.5-inch applications. A Colt wheel, Aspen wheel, St Regis wheel, and heavy-duty Pickup or Sportsman 16.5-inch wheel are not interchangeable simply because they all belong to 1979 Dodge vehicles.

Even within one model family, wheel width can be the limiting factor after diameter is confirmed. A Pickup or Sportsman Wagon may have more than one valid wheel-and-tire combination, and a Ramcharger can mix several different 15-inch sizes with different construction types. Treat the original wheel as compatible only after verifying the diameter and comparing the wheel width to the approved range for the exact tire you want to mount.

Store a 1979 Dodge in a cool, dry, dark space away from direct sunlight, electric motors, battery chargers, welders, and other ozone-producing equipment. Keep the tires clean, maintain inflation, and move the vehicle periodically so one section of the tread does not carry the load for months at a time. Bias-ply tires on a 1979 Dodge, such as L78-15, 700-15, H78-15, or 600-13, are generally more prone to flat-spotting during long static storage than radial tires.

If the car or truck will sit for an extended season, many collectors place it on stands or slightly overinflate within the tire maker's guidance to reduce standing stress. The goal is to preserve the casing as much as the tread. Good storage habits help whitewalls stay cleaner, sidewalls stay more flexible, and the first drive of the season feel far more predictable.

On a collector-driven 1979 Dodge, age matters more than mileage. A tire may still have excellent tread depth and still be due for replacement because the rubber has aged, hardened, or begun to crack. A practical rule is to evaluate tires carefully once they reach five to seven years of age and to treat around ten years as the point where replacement should be strongly considered regardless of use. The DOT date code on the sidewall is the starting point for that timeline.

That matters especially on hobby vehicles that spend more time parked than driven. A low-mile Ramcharger, St Regis, or Magnum XE can wear out its tires chemically before it wears them out mechanically. If the date code shows real age, or if the sidewalls show cracking, separation, or persistent pressure loss, replacement becomes a maintenance issue rather than a cosmetic one.

Inspect the tires on a 1979 Dodge before every drive and again before any longer highway outing. Look closely for sidewall cracking, tread separation, punctures, bulges, irregular wear, and signs of impact damage from curbs or potholes. Check inflation pressure with a reliable gauge and make sure each tire is holding air consistently. If your setup uses tube-type components or older-style valve stems, those parts deserve the same level of attention as the casing itself.

Frequent inspection is especially important because these vehicles are old enough that tires may age out long before they look obviously worn. A quick walkaround catches problems early, whether the Dodge is a compact Colt, a full-size truck, or a van carrying more weight. That habit can prevent a roadside failure and also helps you spot alignment or suspension issues before they ruin a hard-to-find vintage tire.

A 1979 Dodge Aspen would have been associated with late-1970s passenger-car sizing that could include both traditional bias-ply and radial formats, depending on the exact application. The Aspen's fitment family here includes D78-14 in bias-ply form and DR78-14, ER78-14, and FR78-14 in radial form, all on 14-inch rims. By 1979, radial adoption was well established in the U.S. market, but bias-ply options still appeared in period fitment charts and replacement practices.

For an authenticity-minded restoration, the most important thing is matching the exact size code and construction appropriate to your car's original configuration, market, and trim. Avoid assuming that every Aspen used the same tire simply because the wheel diameter matches. If originality is the priority, compare your car's surviving labels or paperwork and consult a marque club or restoration specialist before committing to a final size and sidewall style.

Yes, correct tire fitment matters on a show-level 1979 Dodge because judges and knowledgeable enthusiasts often notice whether the size, construction type, profile, and sidewall treatment suit the vehicle's era and category. A compact imported-model Dodge on an oversized domestic-style whitewall, or a full-size luxury Dodge on an obviously modern-looking tire style, can distract from an otherwise accurate restoration. Construction can matter too, especially if the vehicle is being judged for originality rather than touring use.

The closer the event is to concours standards, the more those details count. A radial on a vehicle judged as delivered with a bias-ply, or the wrong decorative sidewall treatment for the model's market position, may be viewed as incorrect even if the tire physically fits. Check the event's rules and use marque-club guidance when authenticity matters more than convenience or road-use preference.

H78-15 and J78-15 are both 15-inch alphanumeric bias-ply sizes used on the 1979 Dodge Sportsman Wagon, but they are not identical. H78-15 is available from Coker Classic and STA in blackwall and wide whitewall form, with load ratings ranging from 1,770 pounds at 32 psi to 1,830 pounds at 45 psi and a rim width range of 5.50 to 7.00 inches. J78-15 comes from BFGoodrich in dual-white-stripe and narrow whitewall styles, with a 1,860-pound load rating at 32 psi and the same 5.50 to 7.00-inch rim width range.

For a Sportsman Wagon restoration, the practical difference is partly visual and partly application-specific. H78-15 gives you a broader mix of blackwall and fuller whitewall looks, while J78-15 leans into decorative sidewall treatments associated with custom or upscale van presentation. If originality matters, match the exact size code first and then choose the sidewall treatment that best fits the character and intended presentation of your van.

They can be, provided the tires are fresh, correctly fitted, properly inflated, and matched to the way the 1979 Dodge is actually used. Several radial sizes carry explicit speed symbols, including T at 118 mph, H at 130 mph, and V at 149 mph depending on the size and product. Examples include 195/70R14 91V, 165R13 in H-rated versions, 155R13 in H-rated versions, 175/70R13 82H, 165R14 84H, 185R14 90H, and 185/70R13 in both H- and V-rated forms.

The tire is only one part of highway safety on a 1979 Dodge. Brakes, steering, suspension, wheel condition, and alignment matter just as much, and many of these vehicles were not engineered with modern emergency handling in mind. If you plan regular highway driving, fresh radial tires in the correct size usually make the most practical starting point, but the whole vehicle still needs to be road-ready.

Inflation pressure depends on the exact tire size and product. Examples include L78-15 at 1,970 pounds at 32 psi, LR78-15 at 1,970 pounds at 32 psi, 600-13 at 1,010 pounds at 32 psi, 700-15 at 1,700 pounds at 32 psi, 185R14 at up to 1,323 pounds at 35 psi on some products, 800-16.5 at 2,045 pounds at 60 psi, 950-16.5 at 2,780 pounds at 60 psi, H78-15 at 1,770 pounds at 32 psi or 1,830 pounds at 45 psi depending on the tire, and 205/75R15 at 1,598 pounds at 35 psi on several products.

Use the vehicle's factory guidance as your baseline for normal operation, then compare it against the tire maker's maximum load-and-pressure marking for the exact tire you have chosen. Do not transfer one pressure figure from a truck tire to a passenger-car tire or from one size family to another. A 16.5-inch heavy-duty Dodge truck setup lives in a very different pressure world than a Colt, Omni, or St Regis radial.

Check every tire on the 1979 Dodge for sidewall cracking, cuts, bulges, tread wear, punctures, and proper inflation before a longer trip. Inspect valve stems closely, and if the setup involves tube-type components or older wheels, confirm there are no signs of leakage or stem damage. Do not forget the spare; a vintage spare that has never touched the road can still be too old to trust if the rubber has aged out.

A longer drive also calls for a broader mechanical inspection because tires are only one part of the risk picture on a late-1970s vehicle. Look over the brakes, cooling system, belts, hoses, wheel bearings, and steering components before you leave. A well-chosen tire helps, but a dependable road trip in a 1979 Dodge depends on the overall condition of the whole vehicle, not just the tread.