1983 Nissan Trucks 720 Tires

The 1983 Nissan Trucks 720 uses several primary tire sizes rather than one universal fitment. Depending on the exact sub-model, the truck can use GR78-15, G78-15, E78-14, 185R14, 700-14, or 195R14, with both radial and bias-ply constructions represented across the lineup.

That means the first step is identifying the truck's exact configuration, not simply ordering by year and model alone. A 4x4, H.D., King Cab, Sport, Long Bed, or Reg. Bed version may point to a different size, and the 14-inch and 15-inch wheel families should not be mixed without verifying the actual wheels on the vehicle.

A 1983 Nissan Trucks 720 uses either a 14-inch or 15-inch rim, depending on the specific sub-model and tire size. The 15-inch fitments are tied to GR78-15 and G78-15, while E78-14, 185R14, 700-14, and 195R14 are all 14-inch tire sizes.

Wheel diameter should be confirmed before comparing tires, especially on trucks that may have changed wheels over the years. Aluminum-wheel versions still need to be checked by actual measurement, and wheel width matters too when moving between bias-ply fitment and a radial equivalent, since the correct diameter alone does not settle the whole fitment question.

The 1983 Nissan Trucks 720 covers a wide spread of sub-models, including standard trucks, H.D. versions, and 4x4 configurations, so tire fitment is not the same across the range. Some models use 14-inch wheels, others use 15-inch wheels, and the original fitments include both bias-ply and radial constructions.

That variety changes the buying decision from simple size matching to configuration matching. A buyer should confirm the exact sub-model name, current wheel diameter, and whether the truck still uses its intended construction type before choosing a tire, because a 720 Sport, King Cab, H.D., or 4x4 regular bed can lead to very different tire paths.

G78-15 is a bias-ply tire size on the 1983 Nissan Trucks 720. It is used on the 4x4 Reg. Bed and 4x4 Reg. Bed w/aluminum wheels, and it belongs to the older alphanumeric bias-ply sizing system rather than a radial format.

That matters because keeping G78-15 preserves the truck's original construction style for that fitment, while changing to a radial means moving into an equivalent-size comparison rather than staying with the primary size itself. The truck's 15-inch wheel diameter is only one part of the decision, so wheel width and vehicle clearance should also be reviewed before any construction change.

Radial equivalents for G78-15 include 205R15 as an 80-series metric radial, P215/75R15 as a 75-series P-metric radial, P225/70R15 as a 70-series P-metric radial, and 710R15 as a bias-look radial. These are alternative radial formats for the 15-inch bias-ply fitment used on the applicable 1983 Nissan Trucks 720 4x4 regular bed models.

Each option follows a different sizing convention, so the choice is not only about construction but also about how closely the tire's profile and presentation suit the truck. The recommended rim-width range for these G78-15 equivalents is 6-8 inches, and final selection still calls for a check of wheel width, overall dimensions, and available clearance.

Start by confirming the truck's exact primary size and wheel diameter, then compare only the radial equivalents tied to that bias-ply size. On the 1983 Nissan Trucks 720, G78-15, E78-14, and 700-14 each have specific radial-equivalent options, and those alternatives should be treated as comparison sizes rather than automatic replacements.

The practical checks include wheel width, tire-to-fender clearance, steering clearance, and the truck's current suspension condition. A collector truck that still sits on original-style wheels may react differently than one with later wheel changes, so the safest path is verifying the entire setup before changing both sizing format and construction at the same time.

Begin with the exact sub-model, because the 1983 Nissan Trucks 720 uses multiple primary sizes across both 14-inch and 15-inch wheels. Construction is the next major filter, since some configurations use bias-ply sizes such as G78-15, E78-14, and 700-14, while others use radial sizes such as GR78-15, 185R14, and 195R14.

After the fitment is narrowed correctly, compare the tire's sidewall style, brand, series, and rim-width suitability for the wheel already on the truck. A work-oriented blackwall truck tire makes a different statement than a narrow or wide whitewall, so the best choice depends on whether the goal is utility, period-style appearance, or mixed collector-road use.

Sidewall choices for the 1983 Nissan Trucks 720 include blackwall, narrow whitewall, and wide whitewall, depending on the tire size. The available look changes by fitment, with some sizes leaning toward truck-style blackwalls and others offering more restoration-oriented whitewall treatments in either narrow or wider widths.

That makes sidewall style a secondary decision after the correct size and construction are established. A 700-14 bias-ply truck can be kept very plain with a blackwall or given a softer vintage presentation with a whitewall, while 185R14 radial choices allow a buyer to stay on the correct size and still change the visual character of the truck.

Tires for the 1983 Nissan Trucks 720 are available from Coker Classic, STA, Michelin, Phoenix, Vredestein, and BFGoodrich across the applicable sizes. Brand presence depends on the fitment, so the same truck will not necessarily have access to every brand unless it shares that exact size and construction.

Brand choice should be weighed alongside size, construction, series, and sidewall style rather than treated as the starting point. Michelin and Vredestein appear in 185R14 radial fitments, while Coker Classic, STA, and BFGoodrich cover several of the bias-ply sizes, which gives owners different paths depending on whether the truck leans passenger-style, truck-style, or restoration-style.

A period-style choice starts with the truck's actual primary size and original construction type for that sub-model. On the 1983 Nissan Trucks 720, that could mean keeping a bias-ply size such as G78-15, E78-14, or 700-14, or staying with a radial fitment such as GR78-15 or 185R14 where that was the truck's intended tire family.

Once the correct size path is established, appearance becomes more specific through sidewall style and tire series. Buyers chasing authenticity in a restoration should use the proper fitment as the foundation, then compare period photographs, marque knowledge, or vehicle-specific documentation before treating any one sidewall treatment as the final historical answer.

Tire construction changes the visual character of a restored 1983 Nissan Trucks 720 as much as the size itself. Bias-ply tires usually preserve an older presentation tied to vintage alphanumeric or numeric sizing, while radial fitments such as GR78-15, 185R14, and 195R14 give the truck a more later-period look consistent with early-1980s usage.

That distinction matters most when the truck is being restored with a clear visual goal. A whitewall bias-ply on a two-wheel-drive bed model creates a very different impression from a blackwall radial on a King Cab or Sport, so the construction decision should support the truck's intended era feel rather than only chasing availability.

Yes, modifications can affect tire fitment on a 1983 Nissan Trucks 720 even when the tire size itself is correct for the original sub-model. Changes to wheel diameter, wheel width, offset, suspension height, or body clearance can alter how a GR78-15, G78-15, 185R14, 700-14, or other primary size sits on the truck.

That is especially important on compact trucks that may have seen aftermarket wheels or ride-height changes over time. A buyer should verify the actual wheel dimensions and inspect steering and fender clearance before choosing a replacement, because the catalog size tells the intended fitment path but does not erase changes made to the truck since new.

Check the wheels for correct diameter and condition, confirm that lug hardware is appropriate, and make sure the tires are inflated properly for the application. It also helps to inspect suspension, steering, and brake components on a 1983 Nissan Trucks 720, especially if the truck has been stored or driven only occasionally.

A slow walkaround after installation is worthwhile before regular road use. Look for rubbing at full steering lock, uneven stance, air loss, and any sign that an older wheel or worn suspension bushing is affecting how the tire sits, because a fresh tire performs best when the rest of the truck is equally road-ready.

Collector-use tires on a 1983 Nissan Trucks 720 should be checked regularly for pressure, sidewall cracking, cuts, bulges, and unusual tread wear. Low-mileage trucks can hide age-related issues, so a tire that still looks serviceable at a glance deserves closer inspection before the truck goes back into regular road use.

Good storage habits matter as much as mileage on an older pickup. Keeping the truck away from prolonged sunlight, heat, moisture, and ozone sources helps preserve the tires, and occasional movement can reduce flat-spotting during long storage periods. Any tire that shows persistent air loss or visible deterioration should be evaluated before a longer drive.