The 2000 GMC Trucks Sierra 2500 belongs to the first generation of GMT800 heavy-duty pickups, a period when GMC balanced everyday comfort with serious towing and work-truck capability. Buyers looking at one today are often maintaining a dependable hauler, a clean original truck, or a well-kept early-2000s three-quarter-ton pickup that still sees regular road use. This Sierra 2500 uses a 245/75R16 radial tire on a 16-inch rim across the covered configurations. In this size, the available choice centers less on fitment variation and more on selecting the right radial tire style, load capability, and raised white letter presentation. That makes wheel condition, intended use, and overall truck setup the key details to confirm before replacement.
Which Tire Size Is Right for The 2000 GMC Trucks Sierra 2500
The 2000 GMC Trucks Sierra 2500 uses one primary tire size: 245/75R16. It is a radial tire for a 16-inch rim, and that same fitment carries across the covered SL, SLE, and SLT 4x2, 4x4, and H.D. configurations. With fitment staying consistent, the real decision becomes choosing the right tire within that size and confirming that the truck still has the correct wheel setup.
A 245/75R16 tire uses a metric sizing system: 245 is the nominal section width in millimeters, 75 is the aspect ratio, R identifies radial construction, and 16 is the rim diameter in inches. For the 2000 GMC Trucks Sierra 2500, this radial size suits the truck's heavy-duty road-use character and 16-inch wheel fitment. Available options in this size include BFGoodrich's All-Terrain T/A KO2 with a raised white letter sidewall treatment. It is the size to evaluate when keeping the truck in its intended fitment range while comparing tread character, wheel width compatibility, and load-related specifications.
Tire fitment is straightforward across the covered 2000 GMC Trucks Sierra 2500 sub-models because each one uses the same 245/75R16 radial size. Checking the exact sub-model still matters when confirming that the truck retains its original wheel diameter and has not been altered with different wheels or suspension changes.
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2000 GMC Trucks Sierra 2500 SL 4x2
The 2000 GMC Trucks Sierra 2500 SL 4x2 uses the same 245/75R16 radial fitment as the other covered Sierra 2500 configurations. Tire selection therefore comes down to choosing the right product in that size and confirming wheel condition, wheel width, and intended use before replacement.
The 2000 GMC Trucks Sierra 2500 SL 4x2 H.D. also uses 245/75R16 radial tires on a 16-inch wheel fitment. That keeps sizing simple, but it is still worth checking the actual wheel setup and load-related tire specifications if the truck is used for heavier work or towing duty.
The 2000 GMC Trucks Sierra 2500 SL 4x4 shares the 245/75R16 radial size used across this Sierra 2500 range. Tire choice is mainly about selecting the right construction and tread style within that size while making sure wheel width and clearance remain appropriate for the truck's current setup.
The 2000 GMC Trucks Sierra 2500 SLE 4x2 uses the same 245/75R16 radial tire size as the other covered trims. That consistency makes replacement easier, with the focus shifting to product characteristics such as sidewall style, rim-width compatibility, and the truck's planned road or light off-road use.
The 2000 GMC Trucks Sierra 2500 SLE 4x2 H.D. remains on the shared 245/75R16 radial fitment. For this sub-model, the key tire decision is choosing a product that matches the truck's working role and verifying that the wheels still match the intended 16-inch fitment.
The 2000 GMC Trucks Sierra 2500 SLE 4x4 uses 245/75R16 radial tires just like the rest of the covered Sierra 2500 lineup. That means sizing is already established, leaving the buyer to compare tire type, sidewall presentation, and compatibility with the truck's current wheel and suspension setup.
The 2000 GMC Trucks Sierra 2500 SLT 4x2 stays with the common 245/75R16 radial tire size. Choosing tires for this sub-model is more about selecting the right product within that fitment than sorting through multiple sizes, especially if appearance and road-use priorities both matter.
The 2000 GMC Trucks Sierra 2500 SLT 4x2 H.D. uses the same 245/75R16 radial setup found throughout the covered Sierra 2500 range. The practical next step is comparing products in that size and checking wheel width, tire condition, and overall truck use before putting miles on a replacement set.
The 2000 GMC Trucks Sierra 2500 SLT 4x4 also uses 245/75R16 radial tires. Since the size does not change here, the buying decision centers on choosing the right tire style for the truck's use and making sure any aftermarket wheel or suspension changes have not altered fitment needs.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2000 GMC Trucks Sierra 2500 Tires for Sale
Available 245/75R16 choices for the 2000 GMC Trucks Sierra 2500 focus on radial truck fitment, with BFGoodrich offering the All-Terrain T/A KO2 in a raised white letter sidewall style. Product comparison in this size centers on construction, load specification, rim-width compatibility, and overall tire character.
These FAQs focus on the 2000 GMC Trucks Sierra 2500 tire size, 16-inch rim fitment, radial-tire selection, sidewall presentation, and the maintenance checks that matter before putting a heavy-duty pickup back on the road.
Tire Size & Fitment
What tire size fits a 2000 GMC Trucks Sierra 2500?
The 2000 GMC Trucks Sierra 2500 uses a 245/75R16 tire size. That is a radial metric size built for a 16-inch rim, and it applies across the covered SL, SLE, and SLT configurations, including 4x2, 4x4, and H.D. versions.
Fitment is simple as long as the truck still has the correct 16-inch wheels. A truck of this age may have aftermarket wheels or previous replacement tires, so it is smart to confirm the actual rim diameter and wheel width on the vehicle before choosing a replacement in 245/75R16.
What size rim does a 2000 GMC Trucks Sierra 2500 use?
The primary tire fitment for the 2000 GMC Trucks Sierra 2500 is built around a 16-inch rim. The 245/75R16 size uses that 16-inch wheel diameter across the covered sub-models, making rim diameter one of the easier fitment points to confirm.
Rim diameter should still be checked directly on the truck, especially if it has been modified or fitted with replacement wheels over the years. Wheel width matters too, since the available LT245/75R16/E product fits rims from 6.5 to 8.0 inches wide rather than every 16-inch wheel automatically.
Do all 2000 GMC Trucks Sierra 2500 sub-models use the same tire size?
Yes. The covered 2000 GMC Trucks Sierra 2500 SL, SLE, and SLT sub-models, including 4x2, 4x4, and H.D. versions, all use the same 245/75R16 radial tire size. There is no sub-model split in primary tire size within the configurations covered here.
That consistency makes the buying process easier because the first decision is not about trim-level size differences. The main thing to verify is whether the truck still has its intended wheel setup, since wheel swaps, suspension changes, or oversized replacement tires can change what fits safely on the vehicle today.
Choosing the Right Tire
What should I consider when choosing a 245/75R16 tire for a 2000 GMC Trucks Sierra 2500?
Start with the correct size, which is 245/75R16, then look at radial construction, wheel compatibility, and the truck's intended use. For this Sierra 2500, the available LT245/75R16/E option combines a truck-oriented construction with a maximum load capacity of 3,042 lbs @ 80 psi.
Selection should also account for how the truck is actually driven. A regularly used pickup, a towing vehicle, and a lightly used collector-grade truck may all call for a different emphasis on tread style, sidewall presentation, and load-related specifications, even when the basic size stays the same.
What sidewall styles are available for 2000 GMC Trucks Sierra 2500 tires?
The available 245/75R16 product for the 2000 GMC Trucks Sierra 2500 uses an RWL sidewall, meaning raised white letters. That gives the truck a more traditional light-truck appearance than a plain blackwall and can suit buyers who want a period-appropriate early-2000s look.
Sidewall style is mostly an appearance choice as long as the tire still meets the truck's fitment and load needs. Raised white letters can change the truck's visual character quite a bit, so it helps to decide early whether the goal is a stock-looking pickup, a sportier presentation, or a strictly work-truck appearance.
What brands offer tires for the 2000 GMC Trucks Sierra 2500?
BFGoodrich is available in the 245/75R16 size for the 2000 GMC Trucks Sierra 2500. The product offered here is the BFG All-Terrain T/A KO2, a radial light-truck tire with raised white letters and an all-terrain-oriented series designation.
Brand is only one part of the choice. It still helps to compare the tire's series, sidewall style, wheel-width compatibility, weight, and load specification against how the truck will be used, especially on a three-quarter-ton pickup where tire demands can be very different from those of a lighter-duty daily driver.
Restoration & Appearance
Which tire should I choose for a period-style 2000 GMC Trucks Sierra 2500?
A period-style approach starts with the correct 245/75R16 size and the Sierra 2500's radial construction. Staying in the proper size keeps the truck visually grounded in its original fitment range, while an LT-designated truck tire preserves the heavier-duty character expected from a three-quarter-ton GMC pickup.
Appearance details then come down to the tire's overall presentation rather than a change in size. A raised white letter sidewall can suit an early-2000s truck look, but exact restoration standards vary by truck history and owner goals, so originality-focused buyers should also compare against photos, window stickers, or marque-specific references.
How does tire construction affect the appearance of a restored 2000 GMC Trucks Sierra 2500?
On a 2000 GMC Trucks Sierra 2500, radial construction is already part of the proper visual and functional character of the truck. The main appearance difference usually comes from sidewall treatment and tread personality rather than from choosing between radically different vintage constructions.
That means a restoration-minded buyer should pay close attention to size, sidewall style, and the truck's stance on its wheels. A correct-looking 245/75R16 with an appropriate light-truck presentation will usually do more for the truck's finished look than chasing an aggressive style that changes the proportions or era feel.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2000 GMC Trucks Sierra 2500?
Yes. The 2000 GMC Trucks Sierra 2500 is sized here for a 245/75R16 tire on a 16-inch rim, but modifications can change whether that fitment still makes sense. Aftermarket wheels, different wheel widths, suspension lifts, lowering changes, or body alterations can all affect compatibility and clearance.
A modified truck should be checked at the wheel rather than assumed to match stock fitment. Confirm the actual wheel diameter and width, then look for steering, fender, and suspension clearance with the truck at rest and in motion so the replacement tire matches the vehicle as it sits today.
What should I inspect before driving a 2000 GMC Trucks Sierra 2500 on new tires?
Before road use, inspect the wheels for damage, confirm lug hardware condition, and make sure the tires are mounted in the correct 245/75R16 size. Tire pressure should be set appropriately, and the truck should be checked for any signs of rubbing, uneven stance, or alignment issues.
A heavy-duty pickup also deserves a broader walk-around before longer use. Look at tread condition, sidewalls, valve stems, and any signs of air loss, then pay attention to steering feel and brake response during the first drive. Catching a wheel, suspension, or alignment issue early can prevent rapid wear on a new set.
How should 245/75R16 tires on a collector-era 2000 GMC Trucks Sierra 2500 be maintained?
245/75R16 tires on a 2000 GMC Trucks Sierra 2500 should be checked regularly for pressure, tread wear, sidewall cracking, cuts, bulges, and signs of slow air loss. Even a truck that is driven only occasionally needs periodic inspection, because low-use vehicles can age tires without accumulating many miles.
Storage conditions matter almost as much as mileage. Keeping the truck away from prolonged sunlight, excess heat, standing moisture, and ozone sources can help preserve tire condition, while occasional movement helps avoid long-term flat spotting. A pre-drive inspection is especially worthwhile before any highway trip or towing use.
