1974 Dodge Pickup Tires

A 1974 Dodge Pickup does not use one universal tire size across the entire model range. Primary fitments include G78-15, H78-15, L78-15, LR78-15, 700-15, 750-16, 800-16.5, 875-16.5, 950-16.5, 8.00R16.5, 8.75R16.5, and 9.50R16.5, depending on the exact D- or W-series truck, GVWR, wheelbase, and whether the application is single rear wheel or dual rear wheel.

That wide spread means the first step is not choosing a brand or sidewall, but identifying the exact sub-model and checking the wheel diameter already on the truck. A D100, W150, D200, D300, W200, or W300 can point you to very different tires, and 16-inch and 16.5-inch wheels must never be treated as the same fitment.

The 1974 Dodge Pickup uses three different rim diameters across its various configurations: 15-inch, 16-inch, and 16.5-inch. The light-duty half-ton models commonly stay in the 15-inch range, certain snow-plow applications use 16-inch wheels, and many heavier D200, D300, W200, and W300 trucks move into 16.5-inch wheel fitment.

Wheel diameter should be confirmed before anything else, because the correct tire size depends on it. A truck that takes 750-16 cannot use a 16.5-inch tire, and a 16.5-inch application should not be treated as interchangeable with a 16-inch wheel simply because the sizes seem close in name or overall truck class.

The 1974 Dodge Pickup covers a broad range of trucks, from lighter two-wheel-drive and four-wheel-drive models to heavier three-quarter-ton and one-ton work applications. Dodge also split the lineup by GVWR, wheelbase, snow-plow use, and in some cases front or rear axle position, so tire size changes with the truck's job and chassis configuration.

That is why a W150 may use 15-inch tires while a D300 or W300 can require 16.5-inch heavy-truck fitment. Instead of comparing only by model name, verify the complete designation on the truck and then match the size to the wheel diameter and duty level already established by that specific configuration.

LR78-15 is a radial fitment for the 1974 Dodge Pickup. It is an alphanumeric radial size used on select 15-inch applications, including certain D100 and W150 configurations, and it differs from the more common G78-15, H78-15, and L78-15 bias-ply sizes found elsewhere in the lineup.

That distinction matters because LR78-15 should not be treated as just another styling variation of the bias-ply 15-inch sizes. The wheel diameter is the same, but construction, tire profile, and available product character can differ, so the owner should confirm the truck's actual tire specification before moving between alphanumeric bias-ply and alphanumeric radial options.

G78-15 has four radial-equivalent choices: 205R15, P215/75R15, P225/70R15, and 710R15 as a bias-look radial. H78-15 maps to 215R15, P225/75R15, P235/70R15, and 760R15. L78-15 maps to 235R15, P235/75R15, P255/70R15, and 820R15, covering 80-series metric, 75-series P-metric, 70-series P-metric, and bias-look radial formats.

These equivalents give a 1974 Dodge Pickup owner several ways to compare radial sizing while staying in the same general fitment family. Even so, the 6-to-8-inch recommended rim-width range should be considered alongside wheel diameter, actual wheel width, and available clearance before any radial equivalent is selected for a truck that originally uses a bias-ply size.

Start by confirming that the truck's original primary size has an actual radial equivalent or a radial primary fitment associated with that specific application. For the 15-inch bias-ply sizes G78-15, H78-15, and L78-15, several radial equivalents exist, while certain trucks also use primary radial sizes such as LR78-15, 8.00R16.5, 8.75R16.5, and 9.50R16.5.

The next checks are wheel diameter, wheel width, and available clearance around the fenders and steering components. A collector truck with replacement wheels, suspension changes, or snow-plow equipment deserves extra attention, and a radial equivalent should be evaluated as an alternative size rather than assumed to be an automatic one-step interchange.

The most important factors are the truck's exact sub-model, the correct primary tire size, and the wheel diameter already on the vehicle. A 1974 Dodge Pickup can use 15-inch, 16-inch, or 16.5-inch wheels, and the tire ranges from passenger-style bias-ply whitewalls to heavy-duty blackwall truck tires and a few radial-format applications.

Once the basic fitment is confirmed, compare construction, rim-width compatibility where stated, load-oriented specifications, and the truck's intended role. A restored light-duty pickup may call for a different visual presentation than a working W200 or D300, even when both choices remain within the correct size for that specific application.

Sidewall choices for 1974 Dodge Pickup tires include blackwall, wide whitewall, narrow whitewall, and dual-white-stripe, depending on the size. The 15-inch light-duty sizes show the most visual variety, while many of the heavier 16.5-inch truck fitments stay focused on blackwall construction.

That means sidewall style should follow both fitment and the personality of the truck. A D100 or D150 running a 15-inch alphanumeric size leaves more room for a restoration-oriented whitewall treatment, while a heavier-duty D200, D300, W200, or W300 often points naturally toward a more functional blackwall truck appearance.

Tires for the 1974 Dodge Pickup are available from Coker Classic, BFGoodrich, Firestone, Lester, and STA, depending on the size. The brand mix changes with the application, with whitewall-oriented 15-inch offerings appearing in some passenger-style sizes and more work-focused blackwall truck tires showing up in many of the 16-inch and 16.5-inch fitments.

Brand choice should come after the correct size and wheel diameter are confirmed. From there, compare the series and sidewall treatment each brand offers in that exact fitment, since the same truck size can support a very different look or use case depending on whether the goal is restoration presentation, utility, or heavier truck service.

A period-style 1974 Dodge Pickup tire starts with the correct primary size for the exact sub-model and wheel diameter, then usually stays within the bias-ply fitments common across most of the lineup. For 15-inch applications, that may include alphanumeric sizes like G78-15, H78-15, or L78-15, while heavier trucks often point toward numeric bias-ply 16.5-inch or 16-inch truck tires.

After the fitment is settled, sidewall style and tire series shape the visual result. A whitewall can create a more dressed-up light-duty presentation, while blackwall truck tires suit more work-oriented Dodge pickups. Owners pursuing exact historical accuracy should compare the truck's configuration against marque-specific references before choosing an appearance package.

Tire construction influences both the stance and visual character of a restored 1974 Dodge Pickup. Bias-ply tires generally preserve the original-era sizing language seen across most of the model range, while radial applications such as LR78-15 or radial equivalents for G78-15, H78-15, and L78-15 can change the look even when the wheel diameter remains the same.

That does not make one construction universally right or wrong for restoration work. A bias-ply tire usually supports a more traditional presentation, while a bias-look radial can offer a middle ground on trucks where an owner wants radial construction without moving too far away from a vintage visual theme.

Yes, modifications can change tire fitment on a 1974 Dodge Pickup even when the nominal size sounds correct. Aftermarket wheels, changes in wheel width, suspension lifts or drops, steering-component differences, snow-plow hardware, and body alterations can all affect how much room the tire has and whether the wheel still matches the intended tire specification.

That matters even more on this truck because the model range already spans several wheel diameters and heavy-duty configurations. A modified W-series or D-series truck should be checked carefully for wheel diameter, wheel width, steering clearance, and fender clearance before assuming the original application's tire size remains the best path forward.

Before putting a 1974 Dodge Pickup back on the road with new tires, inspect the wheels for condition and correct diameter, then check the truck for any signs of rubbing or suspension interference. It is also smart to confirm valve condition, proper air pressure for the tire being used, and whether the vehicle has any axle, brake, or steering issues that could affect tire wear.

A collector truck or old work pickup can sit for long periods, so road testing should begin conservatively. Look again for air loss, unusual tread wear, or contact marks after the first miles, especially on dual rear wheel, snow-plow, and heavier D200 or D300 applications where wheel load and fitment accuracy are especially important.

Tires on a collector 1974 Dodge Pickup should be kept properly inflated, inspected regularly for cracking, cuts, bulges, and uneven wear, and checked for slow air loss before each drive. Low-use trucks still age even when they are not accumulating miles, so time and storage conditions matter just as much as tread depth.

Good storage habits help preserve both bias-ply and radial tires on an older pickup. Keeping the truck away from prolonged sunlight, moisture, excess heat, and ozone-producing equipment can reduce premature aging, and periodic visual checks are especially worthwhile on trucks that see seasonal use or spend long stretches parked indoors.