2014 GMC Trucks Tire Fitment Guide

2014 GMC Trucks vehicles use 16 sizes across seven model lines: 255/55R20, 255/65R18, and 255/60R19 for Acadia; 255/70R17, 265/70R17, 275/55R20, and 265/65R18 for Sierra 1500; 265/60R20, 265/70R18, 245/75R17, and 265/70R17 for Sierra 2500 HD; 265/60R20, 265/70R18, and 235/80R17 for Sierra 3500 HD; 235/55R18, 235/55R19, 225/65R17, and 235/60R17 for Terrain; and 275/55R20, 285/50R20, and 265/70R17 for Yukon and Yukon XL 1500. These fitments span 17-, 18-, 19-, and 20-inch rim diameters.

That spread means the first step is identifying the exact model and the wheel diameter already on the vehicle. A 2014 GMC Trucks owner cannot safely narrow tire choice by year and make alone, because a Sierra 2500 HD and a Terrain may both use 17-inch rims but require very different tire dimensions and load characteristics.

On a 2014 GMC Trucks tire, 265/70R17 is a metric radial size. The 265 is the nominal section width in millimeters, 70 is the aspect ratio, R identifies radial construction, and 17 is the wheel diameter in inches. This size appears on Sierra 1500, Sierra 2500 HD, Yukon, and Yukon XL 1500 applications.

Knowing how to read that code helps separate tires that may look similar at a glance but fit different wheels or carry different proportions. It is also useful within the same size, because 265/70R17 products can differ in load capacity and service character even though the basic dimensions and 17-inch wheel fitment are the same.

No. 2014 GMC Trucks vehicles do not share one universal tire size across the lineup. Some sizes overlap between models, such as 265/70R17 across Sierra 1500, Sierra 2500 HD, Yukon, and Yukon XL 1500, while many others are model-specific, including Acadia's 255-series crossover sizes and the Terrain's mix of 17-, 18-, and 19-inch fitments.

That matters because GMC's 2014 range covered compact crossovers, full-size SUVs, half-ton pickups, and heavy-duty work trucks. If you are unsure of the model or wheel package, check the driver's door placard and compare it to the tire already on the vehicle before choosing between sizes that may share a rim diameter but not the same overall dimensions.

2014 GMC Trucks tire offerings here include both RWL and RBL sidewall treatments, depending on size. The 265/70R17 and 245/75R17 BFGoodrich options use RWL styling, while 235/80R17 and 225/65R17 appear in RBL form. That means sidewall appearance changes not only by brand family but also by the specific size tied to the GMC model.

For a truck or SUV where appearance matters, sidewall style can influence whether the tire looks more like a traditional utility fitment or a cleaner modern replacement. Full-size Sierra and Yukon owners often care about that visual detail, while Terrain owners may simply want the correct size first. Match the sidewall style to the look you want after the fitment itself is confirmed.

BFGoodrich is represented in the current 2014 GMC Trucks product selection, covering 265/70R17, 245/75R17, 235/80R17, and 225/65R17. The products shown here come from the All-Terrain T/A KO2 family and focus on radial truck-oriented applications rather than passenger-car-style crossover tread designs.

That concentration makes the brand especially relevant for Sierra HD, Sierra 1500, and 17-inch Yukon applications where an all-terrain look and truck-capable load range may matter. Acadia and several other crossover and SUV sizes call for the correct dimensional fit first, then a tread and sidewall style that suits how the vehicle is actually used.

The two 265/70R17 choices for 2014 GMC Trucks are both BFGoodrich All-Terrain T/A KO2 radials with RWL sidewalls and an S speed rating, but they differ materially in load capacity, pressure, and weight. One carries 2,470 pounds at 50 psi and weighs 45.7 pounds, while the other carries 3,195 pounds at 80 psi and weighs 53.5 pounds.

That difference matters most when the same 265/70R17 size crosses between lighter and heavier GMC applications. A Yukon or Sierra 1500 owner may not need the same service capacity as a Sierra 2500 HD owner, even though the nominal dimensions match. Compare the tire's service description to the vehicle's intended use before settling on one 265/70R17 over the other.

Rim width guidance is available for several 17-inch 2014 GMC Trucks sizes. The 265/70R17 fits rims from 7.0 to 9.0 inches wide, 245/75R17 fits 6.5 to 7.5 inches, 235/80R17 fits 6.0 to 7.5 inches, and 225/65R17 fits 6.0 to 8.0 inches. Those ranges apply to the specific tire sizes rather than to all 17-inch GMC wheels as a group.

Use that range to confirm that the tire matches the wheel already on the vehicle, especially if the truck or SUV has had aftermarket wheels installed. Two tires may share a 17-inch rim diameter but still call for different rim-width windows, so checking the wheel before mounting helps prevent avoidable fitment problems.

The 2014 GMC Trucks tire sizes represented here are modern radial applications, and none of the available product descriptions use a tube-type marking. That points to tubeless fitment for the BFGoodrich sizes covered, including 265/70R17, 245/75R17, 235/80R17, and 225/65R17.

Even so, the wheel itself still needs to be in proper condition for tubeless service, with clean bead seats and sound valve stems. If a truck or SUV has older replacement wheels, corrosion or damage at the bead can create air-loss issues that are separate from the tire size itself.

A stored 2014 GMC Trucks vehicle should be kept out of direct sunlight, away from electric motors, welders, furnaces, and other ozone-producing equipment, and on a dry surface that does not trap moisture around the tires. Keep the tires inflated to the vehicle's recommended pressure, and move the vehicle periodically if it will sit for long stretches.

Modern radials generally tolerate storage better than older bias-ply designs, but they still age from time, UV exposure, and long static loading. For a Yukon, Sierra, Acadia, or Terrain that is driven seasonally, occasional movement and a clean storage environment will do more for tire life than simply relying on low mileage.

On a 2014 GMC Trucks vehicle, tire age is usually more important than mileage once the truck or SUV becomes a low-use or collector-kept vehicle. A good rule is to begin evaluating tires closely at around five to seven years of age and to treat around ten years as a serious replacement point regardless of remaining tread. The DOT date code on the sidewall tells you when the tire was built.

That guidance is especially useful for vehicles like Yukons and HD Sierras that may see long idle periods between trips. A tire can look usable from tread depth alone and still be aging out structurally. If the date code shows advanced age, replacement planning should come before another road season or towing trip.

Tires on a 2014 GMC Trucks vehicle deserve a quick inspection before every drive and a more thorough inspection before any long outing. Look for sidewall cracking, cuts, bulges, irregular tread wear, and pressure loss. Because these are tubeless radial applications in the available product range, valve stem condition and bead sealing are also worth checking.

Frequent inspections matter on trucks and SUVs because they often sit, carry varying loads, or see seasonal use. A Sierra HD headed out for hauling duty and a Terrain headed on a family trip both benefit from the same simple routine: pressure check, visual walk-around, and confirmation that the spare is inflated and serviceable.

A 2014 GMC Trucks Acadia was originally a modern radial-tire vehicle, not a bias-ply-era design. Within this year and make, Acadia applications use 255/65R18, 255/60R19, or 255/55R20 depending on wheel package. Those sizes reflect the crossover's contemporary factory approach to ride, handling, and packaging rather than any vintage sizing system.

For an accurate replacement on a stock Acadia, the most important step is matching the size shown on the door placard or the original-equipment wheel package. If the vehicle has changed hands or has aftermarket wheels, confirm the exact fitment before assuming one Acadia size applies to every trim or appearance package.

Yes, correct tire fitment still matters when showing a 2014 GMC Trucks vehicle, even though 2014 is far newer than the traditional concours eras. Judges and knowledgeable enthusiasts will notice if the tire size, sidewall profile, or overall stance looks wrong for the model and wheel package. On trucks and SUVs, an oversized or undersized tire can change the appearance immediately.

That is especially relevant for cleaner Sierra, Yukon, and Acadia examples that are being preserved close to stock. If the goal is factory-correct presentation, start with the original size family for the model and wheel package, then confirm whether the sidewall style and tread character suit the vehicle's intended period-correct appearance.

For 2014 GMC Trucks heavy-duty applications, 245/75R17 and 235/80R17 are both radial 17-inch sizes, but they are not interchangeable by assumption. The 245/75R17 BFGoodrich carries 3,195 pounds at 80 psi, fits 6.5- to 7.5-inch rims, uses an RWL sidewall, and is tied to Sierra 2500 HD. The 235/80R17 BFGoodrich carries 3,085 pounds at 80 psi, fits 6.0- to 7.5-inch rims, uses an RBL sidewall, and is tied to Sierra 3500 HD.

Those differences affect appearance, wheel compatibility range, and service capacity, so a buyer should not choose between them on diameter alone. Use the model-specific fitment first, then confirm the actual wheel and intended workload. That approach preserves both correct stance and the truck's designed load-carrying character.

Yes, 2014 GMC Trucks tires in the available product range are modern radial designs suitable for normal highway use when they are the correct size, properly inflated, and in sound condition. The visible speed ratings here are all S-rated, which means a 112 mph ceiling for the 265/70R17, 245/75R17, 235/80R17, and 225/65R17 products represented.

In real-world use, the truck or SUV's condition often matters more than the tire's speed symbol. Suspension wear, alignment, brakes, and load management can affect highway confidence as much as the tire itself, especially on heavier Sierra HD and Yukon applications. Safe road use starts with the right size and ends with the whole vehicle being ready for the trip.

Inflation pressure on 2014 GMC Trucks tires should begin with the vehicle manufacturer's recommendation, then be checked against the tire's own service rating. In the product range shown here, 265/70R17 appears at 50 psi for one 2,470-pound version and 80 psi for one 3,195-pound version, 245/75R17 is rated at 80 psi for 3,195 pounds, 235/80R17 at 80 psi for 3,085 pounds, and 225/65R17 at 65 psi for 2,150 pounds.

Those figures are maximum load-and-pressure pairings for specific tires, not universal settings for every 2014 GMC Trucks model. Use the door placard or owner's manual as the baseline for the vehicle, then make sure the tire you choose is appropriate for that duty. Never transfer one size's pressure figure to another size just because both fit a 17-inch wheel.

Before a longer drive in a 2014 GMC Trucks vehicle, inspect all four tires and the spare for cracking, cuts, bulges, uneven wear, and proper inflation. Check valve stems, make sure the tread is free of embedded damage, and confirm that the size on the vehicle matches the intended application. On Sierra HD and other load-carrying models, also pay attention to whether the tire's service capacity matches the trip's demands.

A pre-drive check should include more than tires alone, but the tires are one of the easiest places to prevent trouble before it starts. If the vehicle has been sitting, take extra time to look for age-related issues and verify pressures cold. That routine is especially worthwhile before towing, highway travel, or carrying passengers and cargo over longer distances.