1989 GMC Trucks R3500 Tires

The 1989 GMC Trucks R3500 uses a 750-16 tire size. This is a numeric bias-ply truck size mounted on a 16-inch rim, and it is the primary fitment across the covered R3500 sub-models, including Base, High Sierra, Sierra Classic, and DRW versions.

That means the first step is usually not sorting through multiple sizes, but confirming that the truck still has the correct 16-inch wheels and the wheel width suits the tire being considered. On an older heavy-duty truck, it is also smart to check whether later wheel changes, service replacements, or chassis modifications altered the setup from its intended size.

The primary tire fitment for the 1989 GMC Trucks R3500 is built around a 16-inch rim. In the 750-16 size, several available tires are intended for wheels in the 5.00- to 6.00-inch width range, which is an important compatibility point when comparing products.

Rim diameter and rim width both matter on this truck. Even when the wheel is 16 inches in diameter, the wrong width can affect how the tire sits and performs. A quick check of the wheel itself, especially on a truck that has seen commercial use or later parts swaps, helps keep the tire choice aligned with the actual hardware on the vehicle.

Yes. The covered 1989 GMC Trucks R3500 sub-models all use the same primary tire size: 750-16 bias-ply. That includes the Base, High Sierra, Sierra Classic, and the corresponding DRW versions, so the basic tire-size question is consistent across the page.

Even with shared size fitment, the sub-model still matters as a checkpoint because trucks in this class were often worked, repaired, and updated over time. It is worth confirming the actual wheel condition, wheel width, and whether the truck still carries a period-style heavy-duty setup before choosing between blackwall, whitewall, or more truck-specific 750-16 tire series.

Start with the correct 750-16 size, then look at how the truck will actually be used. The available options stay within bias-ply construction, but they differ in sidewall style, tire series, rim-width specifications, and in some cases load-related details that may matter more on a working heavy-duty truck than on a display vehicle.

A restoration-minded R3500 may lean toward a traditional classic bias-ply or wide whitewall presentation, while a utility truck may call for a more truck-oriented series such as NDT, Super Traxion, Super Transport, Traxion, or Transport Highway. Matching the tire to the truck's appearance goals and service demands usually matters more than simply picking the first 750-16 available.

The 1989 GMC Trucks R3500 has 750-16 tire options in both blackwall and wide whitewall sidewall styles. Blackwall choices are common in truck-oriented and military-style series, while wide whitewall versions offer a more stylized, restoration-oriented look within the same basic size and bias-ply construction.

Sidewall style affects the truck's visual character more than the fitment itself, so the right choice depends on how the R3500 is being presented. A work-truck build, utility restoration, or period service look often points toward blackwall, while a more polished collector presentation may favor wide whitewall. Either way, the size and wheel compatibility still need to remain correct.

750-16 tires for the 1989 GMC Trucks R3500 are available from Firestone, Lester, BFGoodrich, and STA. Those brands cover both classic bias-ply styling and more truck-focused applications, so the brand list reflects meaningful variety rather than a single type of replacement tire.

Brand alone should not be the only deciding factor. It is more useful to compare each tire's series, sidewall treatment, construction details, rim-width compatibility, and the role the truck will play. A restored R3500, a parade truck, and a utility hauler can all use the same size while still pointing toward very different 750-16 product choices.

A period-style 1989 GMC Trucks R3500 starts with the correct 750-16 bias-ply size. From there, the right choice depends on the truck's intended personality, since the available options include classic bias-ply passenger-style offerings as well as more commercial-looking truck series that suit a heavier-duty, work-oriented presentation.

A polished restoration may lean toward a traditional classic bias-ply or even a wide whitewall, while a truck meant to reflect service use may look more convincing on blackwall truck tires such as NDT or other utility-focused series. When exact originality matters, compare the tire choice against trusted GMC restoration references and the truck's own historical configuration.

Both blackwall and wide whitewall 750-16 tires can suit a period-style 1989 GMC Trucks R3500, but they create very different visual results. Blackwall generally gives the truck a more functional heavy-duty appearance, while wide whitewall shifts the presentation toward a more stylized and restoration-oriented look.

The best match depends on how the truck is being finished and what kind of story the vehicle is meant to tell. A commercial, farm, or utility theme usually works naturally with blackwall, while a show-focused build may benefit from whitewalls. The important thing is to keep the correct size and construction while choosing the sidewall treatment that supports the build.

Yes. Even though the 1989 GMC Trucks R3500 uses a 750-16 tire as its primary fitment, wheel swaps, brake changes, suspension work, ride-height changes, and body modifications can all affect whether that size still suits the truck exactly as it sits today.

That is especially important on older heavy-duty trucks, which are often repaired with available parts rather than preserved exactly as built. Before selecting a new set of tires, check the actual wheel diameter and width, look for clearance at steering and suspension points, and confirm that the truck's present-day setup still matches the intended 750-16 wheel-and-tire combination.

Before driving a 1989 GMC Trucks R3500 on new tires, inspect the wheels for damage or excessive rust, confirm proper mounting on the correct 16-inch rims, and make sure the tires are inflated appropriately for the product and the truck's intended use. On a dual-rear-wheel truck, spacing and paired tire condition also deserve attention.

A quick walkaround should also include checking lug torque, valve stems, visible clearance around fenders and suspension components, and any signs of rubbing once the truck is on the ground. Older trucks benefit from a short initial road test at moderate speed, followed by a second inspection for air loss, heat buildup, or contact marks that may reveal a setup issue.

750-16 tires on a collector 1989 GMC Trucks R3500 should be kept clean, inflated properly for their application, and inspected regularly for cracking, bulges, cuts, unusual wear, or air loss. Bias-ply tires on low-use trucks deserve extra attention because long storage periods can hide age-related deterioration even when tread still looks serviceable.

Storage conditions matter almost as much as mileage. Keeping the truck away from prolonged sunlight, moisture, and ozone sources helps preserve the rubber, and occasional movement can reduce flat-spotting during long periods of inactivity. Before any longer drive, check pressure, look closely at the sidewalls and tread, and confirm that the wheels and valve hardware remain in sound condition.