1998 GMC Trucks C3500 Tires

The 1998 GMC Trucks C3500 uses either 245/75R16 or 225/75R16, depending on the exact configuration. Single-rear-wheel Sierra SL, SLE, and SLT models use 245/75R16, while dual-rear-wheel versions use 225/75R16 at the front and rear. Both are radial tire sizes designed for 16-inch rims.

The practical difference is not just width on paper, but the truck’s wheel arrangement. A buyer should confirm whether the C3500 is a standard rear-wheel truck or a dually before selecting tires, because choosing by year and model alone can lead to the wrong size for the actual setup on the vehicle.

The tire fitments used on the 1998 GMC Trucks C3500 both mount on 16-inch rims. That applies to the 245/75R16 size used on single-rear-wheel Sierra models and the 225/75R16 size used on the dually front and rear applications.

Rim diameter is only the first check. Wheel width also matters, especially on a heavy-duty truck where load capacity and tire shape need to stay within the tire’s intended range. Confirm the actual wheel diameter stamped on the truck, then compare the wheel width against the tire being considered.

The 1998 GMC Trucks C3500 has more than one tire size because the truck was offered in both single-rear-wheel and dual-rear-wheel forms. Single-rear-wheel Sierra SL, SLE, and SLT models use 245/75R16, while dually versions use 225/75R16 on both front and rear positions.

That means trim name alone is not enough to pick tires. The wheel arrangement changes the fitment, so the buyer should verify whether the truck has one rear wheel per side or dual rear wheels before moving on to brand, tread style, or other tire-selection details.

For a 1998 GMC Trucks C3500 using 245/75R16, the first priorities are confirming that the truck is a single-rear-wheel Sierra model and that the wheel is a 16-inch rim within the tire’s approved width range. The available BFGoodrich All-Terrain T/A KO2 in this size uses radial construction and a raised white letter sidewall.

Beyond size, compare how the tire’s all-terrain character suits the truck’s use. A work-oriented C3500, a weekend tow vehicle, and a restored heavy-duty pickup may all use the same size but place different value on tread style, sidewall appearance, and load capacity at the stated inflation pressure.

BFGoodrich is the brand available for the 1998 GMC Trucks C3500 in these fitments. Both 245/75R16 and 225/75R16 are represented by the BFGoodrich All-Terrain T/A KO2, a radial light-truck tire with raised white letter sidewalls.

Since the brand choice here is straightforward, the more useful comparison is between the two applicable sizes and their specifications. Single-rear-wheel and dually trucks do not use the same tire size, so the right path is confirming the truck’s configuration first and then reviewing the tire’s load, wheel-width, and appearance details.

The available sidewall style for the 1998 GMC Trucks C3500 fitments here is RWL, meaning raised white letter. That sidewall treatment appears on the BFGoodrich All-Terrain T/A KO2 in both 245/75R16 and 225/75R16.

Sidewall styling affects the truck’s presentation as much as the tread does, especially on a late-1990s heavy-duty pickup where period-looking light-truck details still matter. Even so, sidewall appearance should come after confirming the correct size, wheel arrangement, and intended use so the truck keeps the right fitment foundation.

A period-style 1998 GMC Trucks C3500 starts with the correct size for the truck’s actual configuration. Single-rear-wheel Sierra SL, SLE, and SLT models use 245/75R16, while dually versions use 225/75R16. The available BFGoodrich All-Terrain T/A KO2 gives the truck a distinctly late-1990s light-truck look.

For a restoration-minded truck, the best visual result usually comes from matching the proper size and wheel setup before focusing on tread style. The raised white letter sidewall adds a traditional sport-truck touch, but buyers seeking exact historical authenticity should also compare against period photos, trim-level literature, or marque-specific references.

On the 1998 GMC Trucks C3500, the primary fitments are radial tires, so the truck’s intended appearance already aligns with modern radial construction rather than an earlier bias-ply look. In this case, construction affects visual presentation through tread pattern, sidewall shape, and raised white letter styling more than through vintage construction differences.

That makes size and sidewall treatment the more important appearance decisions on a restored truck. A dually with the correct 225/75R16 setup and a single-rear-wheel truck with the proper 245/75R16 fitment will look more convincing than a truck wearing the wrong size, even if the tread style seems visually appealing.

Yes, modifications can affect tire fitment on a 1998 GMC Trucks C3500. Aftermarket wheels, suspension changes, altered ride height, or conversion from single rear wheels to another setup can all change how a 245/75R16 or 225/75R16 tire sits on the truck.

A modified truck should be checked for actual wheel diameter, wheel width, and clearance at the steering and suspension points before replacing tires. On dually models, the wheel arrangement is especially important, because a tire that matches the nominal rim diameter still needs to suit the truck’s intended dual-wheel application.

Before driving a 1998 GMC Trucks C3500 on new tires, inspect the wheels for damage, confirm the correct size for the truck’s configuration, and make sure the tires are inflated properly for the application. It is also wise to check valve stems, lug torque, and visible clearance around suspension and steering components.

A one-ton truck places real demands on its tires, so the inspection should also include the truck itself. Worn steering parts, sagging suspension components, or mismatched dually hardware can affect how the tires behave on the road, even when the tire size and load specification are otherwise appropriate.

Tires on a 1998 GMC Trucks C3500 should be maintained with regular pressure checks, visual inspections for cuts, cracking, bulges, and uneven tread wear, and routine attention to air loss over time. Heavy-duty trucks also benefit from keeping a close eye on wheel condition and valve stem health.

Maintenance should reflect how the truck is actually used. A C3500 that tows, carries weight, or spends time parked between outings still needs consistent tire care, because storage, underinflation, and aging can matter as much as mileage. Dually trucks deserve extra attention to keeping the correct size and condition across the wheel set.