1998 GMC Vans Tire Fitment Guide

1998 GMC Vans vehicles use four sizes across the Savana lineup: 215/75R15 and 235/75R15 for the Savana 1500, 225/75R16 for the Savana 2500, and 245/75R16 for the Savana 3500. The 1500 sizes fit 15-inch rims, while the 2500 and 3500 move to different 16-inch rim diameters. Rim width ranges where products exist run from 5.5 to 7.5 inches for 215/75R15, 6.0 to 8.5 inches for 235/75R15, 6.0 to 7.0 inches for 225/75R16, and 6.5 to 8.0 inches for 245/75R16.

That means year and make alone are not enough for a confident tire choice on a 1998 GMC Vans vehicle. Start by identifying whether your van is a Savana 1500, 2500, or 3500, then confirm the wheel diameter already on the van before narrowing the exact size. The 1500 has two 15-inch options with more appearance variety, while the 2500 and 3500 each follow a single heavier-duty 16-inch size path.

On a 1998 GMC Vans tire, 215/75R15 means the tire is 215 millimeters wide, uses a 75-series aspect ratio, has radial construction, and mounts on a 15-inch wheel. That format is a modern metric radial size, and on 1998 GMC Vans it applies to the Savana 1500. Products in this size fit rim widths from 5.5 to 7.5 inches depending on the exact tire.

The practical takeaway is that 215/75R15 is not just a number string to match visually on the sidewall. It defines width, profile, construction, and wheel diameter, all of which need to stay in sync with the van and wheel you are using. If your Savana 1500 already wears 15-inch wheels and you want to stay with a narrower 15-inch radial size, this is the size to compare against the actual tire on the van.

No. 1998 GMC Vans models do not share one universal tire size. The Savana 1500 uses 215/75R15 or 235/75R15, the Savana 2500 uses 225/75R16, and the Savana 3500 uses 245/75R16. That split reflects the way GMC positioned the lineup from lighter-duty full-size van service to heavier commercial work.

For a buyer, that means the model badge matters as much as the year. A 15-inch Savana 1500 tire should not be treated as interchangeable with a 16-inch Savana 2500 or 3500 tire simply because all are 1998 GMC Vans vehicles. Confirm the model and wheel diameter first, then use the existing tire sidewall or wheel measurement to verify the correct size before moving on to brand or sidewall style.

1998 GMC Vans tires come in several sidewall looks depending on size. The 215/75R15 size is available in RBL, narrow whitewall, and wide whitewall styles, while 235/75R15 adds RWL along with narrow and wide whitewall options. The 225/75R16 and 245/75R16 sizes are centered on RWL truck-style radials. That gives the Savana 1500 the broadest visual range, while the heavier 2500 and 3500 stay more utility-focused.

Appearance matters most on vans used for conversion, show, or nostalgic street duty, especially on a Savana 1500 where a whitewall can change the personality of the vehicle substantially. If your van is more work-oriented, the blackwall or raised-white-letter look may better match the vehicle's original tone. Sidewall style does not replace fitment, so choose the correct size first and then narrow the look you want within that size.

1998 GMC Vans coverage includes several brands, with the widest variety in the Savana 1500 sizes. The 215/75R15 size is available from BFGoodrich, Coker Classic, and Tornel. The 235/75R15 size is available from BFGoodrich, American Classic, Maxxis, and Coker Classic. The 225/75R16 and 245/75R16 sizes are available from BFGoodrich.

That mix gives 15-inch Savana 1500 owners the most flexibility if they are balancing visual style against a more truck-oriented tread character. The 16-inch Savana 2500 and 3500 sizes are more focused, which is common when a van moves into heavier-duty fitment territory. Once you know your exact size, compare brands by sidewall appearance, load capacity, and approved rim width rather than assuming all tires in the same size serve the same purpose.

On a 1998 GMC Vans Savana 1500, the BFGoodrich All-Terrain T/A KO2 appears in both 215/75R15 and 235/75R15 with blackwall or raised-white-letter truck styling, S speed ratings, and load capacities up to 1,985 pounds in the 235 size at 50 psi. The classic whitewall radials in those same sizes come from brands such as Coker Classic, BFGoodrich Silvertown, American Classic, Maxxis, and Tornel, with narrow or wide whitewall presentation and lower inflation ratings such as 32 or 35 psi on several examples.

That difference matters if your Savana 1500 is being styled as a custom van, cruiser, or period-flavored street vehicle rather than a utility van. The KO2 has a distinctly truck-centered visual and load approach, while the whitewall radials put more emphasis on classic appearance. Both still require you to stay within the correct 15-inch size and approved rim width for the exact tire you choose.

Rim width requirements for 1998 GMC Vans tires vary by size. For 215/75R15, approved widths span 5.5 to 7.5 inches depending on the tire. For 235/75R15, they run from 6.0 to 8.5 inches. For 225/75R16, the range is 6.0 to 7.0 inches, and for 245/75R16 it is 6.5 to 8.0 inches.

Those ranges show why two tires with the same size code are not always interchangeable on every wheel. Before choosing a product, compare the actual wheel width on your van to the approved range for that exact tire, not just the broad size category. That matters especially on the Savana 1500, where multiple tire styles exist in both 15-inch sizes and wheel width can influence which specific product is the cleanest fit.

1998 GMC Vans tires in these sizes are radial products without tube-type markings, and the available examples read as tubeless-style modern radials. The 15-inch Savana 1500 sizes and the 16-inch Savana 2500 and 3500 sizes all follow that same general pattern. On late-1990s full-size vans, tubeless radial construction is consistent with the era and the vehicle type.

Even so, wheel condition still matters. If a van has original steel wheels that have seen decades of service, inspect the bead seats and valve stem condition before mounting new tires. A tubeless tire depends on the wheel and valve hardware being in sound condition, so it is worth treating the wheel itself as part of the fitment decision rather than focusing only on the size stamped on the sidewall.

Original 1998 GMC Vans wheels cannot be treated as universal across all four tire sizes because the lineup uses both 15-inch and 16-inch rim diameters. The Savana 1500 uses 15-inch sizes, while the Savana 2500 and Savana 3500 use 16-inch sizes, and the heavier 16-inch tires also call for their own rim width ranges. Wheel diameter has to match the tire exactly.

That means a Savana 1500 wheel is not automatically a candidate for 2500 or 3500 tires, and even the two 16-inch sizes should be checked against the actual wheel width before installation. If your van has had wheel changes at some point in its life, verify the wheel diameter and width on the van itself rather than relying only on model designation. That extra step prevents a very common ordering mistake on full-size vans.

A 1998 GMC Vans vehicle stores best on clean, properly inflated tires in a cool, dry, dark space away from direct sunlight, electric motors, welders, battery chargers, and other ozone sources. Because these are radial tires, they generally tolerate inactivity better than older bias-ply designs, but a heavy full-size van can still develop temporary flat spotting if it sits in one place for long periods. Moisture under the tires and long exposure to concrete contaminants are also worth avoiding.

For practical collector use, move the van periodically or place it on stands if it will be down for an extended season, while supporting it in a way that is appropriate for the chassis. Keep the tires clean with mild soap and water rather than dressings that can leave residues. If the van carries significant interior conversion weight or work equipment, storage pressure and periodic movement become even more important.

Tires on a 1998 GMC Vans vehicle should be judged more by age and condition than by miles alone, especially on collector-owned or low-use vans. A sensible practice is to begin close inspection once tires are around five to seven years old and to treat ten years as a serious replacement threshold regardless of tread depth. The DOT date code on the sidewall is the right place to verify age.

That matters because a van can cover very few miles while still aging out its tires through time, heat cycles, sunlight, and storage conditions. Full-size vans also place meaningful load on their tires, so age-related hardening and sidewall cracking should not be ignored just because tread still looks deep. If the van has an unused spare, check its date code too, since it may be the oldest tire on the vehicle.

Tires on a 1998 GMC Vans vehicle deserve a quick inspection before every drive and a more careful check before any extended outing. Look for sidewall cracking, cuts, punctures, uneven wear, bulges, and any sign that the tire has been run low on air. Pressure should be checked cold, and the valve stems should be examined as part of the same routine.

That habit matters even more on an older van because age, weight, and intermittent use can hide problems until the vehicle is back on the road at speed. A Savana used for family trips, hauling, or camper duty should also have its spare inspected and aired up before departure. If one tire shows unusual wear, treat it as a signal to inspect alignment, suspension components, or loading rather than replacing only the tire and moving on.

A 1998 GMC Vans Savana 1500 would have originally used modern radial tires, not bias-ply construction, because radial tires were long established as standard passenger and light-truck fitment by the late 1990s. Within this year and make, the Savana 1500 uses 215/75R15 or 235/75R15, both on 15-inch wheels. Sidewall appearance could vary by market presentation and owner preference, especially on vans that later became custom, conversion, or lifestyle vehicles.

If authenticity matters, start with the exact size on the vehicle's original specification label or surviving factory paperwork, then compare the sidewall look to period photos of similarly equipped vans. Whitewall choices can suit a custom or nostalgic presentation, but they are not automatically the right answer for every Savana 1500. For trim- and market-specific confirmation, a GMC truck specialist or marque club is the best final authority.

Correct tire fitment does matter when a 1998 GMC Vans vehicle is judged or presented seriously, even though it is a newer collector platform than mid-century classics. Judges and knowledgeable enthusiasts will notice the basic size, the wheel diameter, and whether the sidewall style suits the vehicle's period and purpose. A Savana 1500 on an aggressive truck tire sends a very different message than one on a clean whitewall radial, while the 2500 and 3500 generally lean more naturally toward utility-oriented sidewalls.

The standard for what counts as correct depends on the kind of event and the story you are telling with the van. A factory-stock restoration, a period custom van, and a preserved work van may all justify different sidewall choices while still requiring the right size and wheel diameter. If the van will be judged formally, compare your tire choice against event rules and period reference material before finalizing the look.

For a 1998 GMC Vans Savana 1500, both 215/75R15 and 235/75R15 are radial 15-inch sizes, but the 235 is wider. The 215 size fits product rim-width ranges beginning at 5.5 inches and extending to 7.5 inches, while the 235 size starts at 6.0 inches and reaches as wide as 8.5 inches depending on the tire. The 235 size also carries a broader mix of whitewall and truck-style sidewall choices.

That makes the decision partly visual and partly wheel-dependent. If the van retains narrower original-style 15-inch wheels, the 215 may be the easier path, while the 235 can suit a fuller stance if the wheel width supports it. For an authenticity-minded build, the right answer comes down to the original specification for the van and the period look you are trying to preserve.

1998 GMC Vans tires in these fitments are modern radial designs, and the products with visible speed ratings carry an S rating, which means a 112 mph ceiling. For normal highway use, that is well beyond the speeds most full-size Savana vans are driven, especially when loaded or used for passenger and cargo duty. On a vehicle of this type and age, brake condition, steering response, suspension wear, and weight distribution often matter as much as the tire's speed symbol.

Highway safety still depends on using the correct size, maintaining proper inflation, and staying within the tire's load capacity for the van's actual use. A Savana 2500 or 3500 that sees cargo or conversion duty should be approached with extra attention to load and pressure. Any older van should also be road-tested only after confirming that the tires are age-sound, evenly worn, and free of cracking or impact damage.

Inflation pressure for 1998 GMC Vans tires depends on the exact size and product. Examples include 215/75R15 products rated at 1,765 pounds at 50 psi, 1,874 pounds at 32 psi, and 1,742 pounds at 35 psi; 235/75R15 products rated at 1,985 pounds at 50 psi, 2,028 pounds at 35 psi, and 2,271 pounds at 32 psi; 225/75R16 at 2,680 pounds at 80 psi; and 245/75R16 at 3,042 pounds at 80 psi.

Those figures are maximum load-and-pressure pairings for specific tires, not one universal inflation setting for every 1998 GMC Vans model. Use the vehicle's factory tire placard or owner's manual as your baseline, then make sure the tire you choose is suitable for that application and load range. Do not transfer a pressure figure from one size or tire series to another just because the van is the same year and make.

Before a longer drive in a 1998 GMC Vans vehicle, inspect each tire for cracking, cuts, punctures, bulges, uneven wear, and proper cold inflation. Check valve stems, verify that tread depth is still serviceable across the full width, and make sure the spare is present, inflated, and age-sound. On a full-size van, it is also wise to consider how much passenger, cargo, or conversion weight the tires will be carrying on the trip.

The tires are only one part of the travel equation on a van of this age. A longer outing should also include a quick review of brakes, wheel bearings, suspension, fluid levels, lights, and cooling system health, since any of those can become the limiting factor before the tires do. If the van has been sitting, a short local shakedown drive is smart before committing to sustained highway mileage.