The 2006 GMC Trucks Yukon sits in the full-size SUV era when comfort, towing capability, and everyday utility were expected to live in the same package. Buyers could find it in straightforward work-ready trims as well as more upscale Denali and optioned SLT versions, which makes exact tire fitment more important than it first appears. This Yukon uses radial tire fitments in four different sizes: 245/75R16, 265/70R16, 265/70R17, and 275/55R20, depending on sub-model and wheel package. Available choices here center on modern metric radial sizing, with BFGoodrich All-Terrain T/A KO2 options in raised white letter form. The right selection starts with confirming the exact trim and wheel diameter already on the vehicle.
Which Tire Size Is Right for The 2006 GMC Trucks Yukon
The 2006 GMC Trucks Yukon uses four different primary tire sizes, and the correct one depends on the exact sub-model and wheel setup. Fitment varies across 16-inch, 17-inch, and 20-inch rims, so confirming wheel diameter comes first, followed by trim level. Once that is settled, the decision shifts to choosing the right radial tire within that size for load range, rim-width compatibility, and intended use.
265/70R17 is a metric radial size in which 265 identifies the section width in millimeters, 70 is the aspect ratio, R indicates radial construction, and 17 is the wheel diameter in inches. On the 2006 GMC Trucks Yukon, this size is used on certain trims and keeps the selection focused on modern radial construction. Available choices in this size include BFGoodrich All-Terrain T/A KO2 tires with raised white letter sidewalls. It is a useful fitment to evaluate when the Yukon already carries 17-inch wheels and the goal is to match the existing wheel diameter and overall setup.
245/75R16 is a metric radial size with a 245-millimeter nominal section width, a 75-series profile, radial construction, and a 16-inch rim requirement. This size applies to specific 2006 GMC Trucks Yukon trims, so it should not be treated as universal across the model line. BFGoodrich All-Terrain T/A KO2 is available here with a raised white letter sidewall, giving the tire a more traditional truck presentation. This size makes sense when the vehicle retains its 16-inch wheel setup and you want to stay with the fitment intended for that particular Yukon configuration.
265/70R16 follows the same metric radial sizing format, combining a 265-millimeter section width with a 70-series profile on a 16-inch wheel. For the 2006 GMC Trucks Yukon, this size belongs to certain SLE configurations rather than every trim. The available product in this size is a BFGoodrich All-Terrain T/A KO2 with raised white letter styling, which gives the buyer a distinct truck-oriented look within the correct dimensions. It is the size to consider when the Yukon has the matching 16-inch wheels and you want to keep the original fitment category for that setup.
275/55R20 is a metric radial tire size that uses a wider 275-millimeter section width, a 55-series profile, and a 20-inch rim. On the 2006 GMC Trucks Yukon, this size appears on selected SLE and SLT-based configurations, making wheel confirmation especially important before ordering. The lower-profile side of this size format gives it a noticeably different fitment role than the 16-inch and 17-inch Yukon sizes. It should be evaluated when the vehicle already wears 20-inch wheels and the buyer wants to stay within the tire dimensions associated with that specific trim and package combination.
Tire fitment on the 2006 GMC Trucks Yukon changes by sub-model, and some trims also have more than one wheel and tire combination. Checking the exact trim name matters here because the Yukon range spans 16-inch, 17-inch, and 20-inch fitments rather than one shared size across the board.
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2006 GMC Trucks Yukon Denali
The 2006 GMC Trucks Yukon Denali uses a 265/70R17 radial tire fitment. That keeps the decision centered on selecting the right 17-inch radial tire for the Denali's existing wheel setup rather than sorting through multiple primary sizes.
The 2006 GMC Trucks Yukon SL uses the 245/75R16 radial size. Tire selection for this sub-model starts with preserving the 16-inch wheel fitment and then comparing the available tire's load and rim-width suitability for the vehicle's intended use.
The 2006 GMC Trucks Yukon SLE can use either a 265/70R16 or a 275/55R20 radial tire, depending on wheel package. That makes wheel diameter the first thing to confirm before choosing a replacement, since the two fitments are tied to very different rim sizes.
The 2006 GMC Trucks Yukon SLT uses either 265/70R17 or 275/55R20 radial tires. Tire choice depends on verifying whether the vehicle has the 17-inch or 20-inch wheel setup, then selecting a tire that matches that existing configuration.
The 2006 GMC Trucks Yukon SLT w/Z71 Pkg. uses either 265/70R17 or 275/55R20 radial tires. For this sub-model, replacement planning starts with confirming the current wheel diameter so the new tire matches the Yukon’s actual wheel and trim-package setup.
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 2006 GMC Trucks Yukon Tires for Sale
Available Yukon tire choices here focus on BFGoodrich All-Terrain T/A KO2 radials in the supported 16-inch and 17-inch sizes. Comparison points include load specification, rim-width range, tire weight, and the raised white letter sidewall treatment.
Common Yukon tire questions usually come down to exact size by trim, wheel diameter, available radial choices, and what to inspect before putting a full-size SUV back on the road.
Tire Size & Fitment
What tire size fits a 2006 GMC Trucks Yukon?
A 2006 GMC Trucks Yukon can use 245/75R16, 265/70R16, 265/70R17, or 275/55R20 tires, depending on the sub-model and wheel package. The Yukon SL uses 245/75R16, the Denali uses 265/70R17, and some SLE, SLT, and SLT w/Z71 Package versions use either a smaller-wheel fitment or a 20-inch setup.
The important next step is matching the tire to the exact trim and wheel diameter already on the vehicle. A Yukon with 16-inch wheels cannot use a 17-inch or 20-inch tire, and a trim that offered multiple fitments should be checked carefully before replacing only one tire or buying a full set.
What size rim does a 2006 GMC Trucks Yukon use?
The 2006 GMC Trucks Yukon uses 16-inch, 17-inch, or 20-inch rims, depending on the sub-model and tire size. The 245/75R16 and 265/70R16 fitments use 16-inch rims, the 265/70R17 fitment uses a 17-inch rim, and the 275/55R20 fitment uses a 20-inch rim.
Rim diameter should be confirmed before anything else because the tire bead must match the wheel exactly. It is also worth checking wheel width, especially if the Yukon has aftermarket wheels, since the available 16-inch and 17-inch radial products carry specific rim-width ranges that should be respected.
Why does the 2006 GMC Trucks Yukon have more than one tire size?
The 2006 GMC Trucks Yukon has more than one tire size because fitment varies by trim and wheel package. The Yukon range includes SL, SLE, SLT, SLT w/Z71 Pkg., and Denali models, and some of those trims were fitted with different wheel diameters that naturally require different tire sizes.
That means replacement tires should be chosen from the tire size tied to the vehicle’s actual setup, not simply by model name alone. Looking at the sidewall of the current tire and confirming the wheel diameter is the safest way to narrow the choices before comparing load capacity, sidewall style, and tire series.
Choosing the Right Tire
What should I consider when choosing a tire for a 2006 GMC Trucks Yukon?
Start with the correct primary size for the exact Yukon trim and wheel diameter, since this model uses four different fitments. From there, look at radial construction, rim-width compatibility, load capacity, and the vehicle’s intended use, especially if the Yukon sees a mix of highway driving, utility work, or occasional off-pavement use.
The available products here also differ in weight and load specification, which can matter on a full-size SUV. Matching those details to the Yukon’s current wheel setup is more useful than chasing a different size, and it helps keep the tire choice aligned with how the vehicle is actually driven and equipped.
What sidewall styles are available for 2006 GMC Trucks Yukon tires?
The available Yukon tire options here use an RWL sidewall, which stands for raised white letter. That sidewall treatment gives the tire a more traditional truck and SUV appearance than a plain blackwall and is part of the visual character of the BFGoodrich All-Terrain T/A KO2 options offered in the supported sizes.
Sidewall styling does not change the need to choose the correct size and rim diameter for the vehicle. Once fitment is confirmed, the sidewall becomes more of an appearance decision, so it is worth considering how the raised white letter look fits the Yukon’s trim level, wheel style, and overall presentation.
What brands offer tires for the 2006 GMC Trucks Yukon?
The available tires for the supported 2006 GMC Trucks Yukon sizes shown here come from BFGoodrich. They are part of the All-Terrain T/A KO2 series and appear in the applicable 16-inch and 17-inch Yukon fitments with radial construction and raised white letter sidewalls.
Since the brand selection shown here is narrow, the real comparison is within the correct size rather than between multiple manufacturers. Pay closer attention to load specification, tire weight, and rim-width range, especially on a vehicle as heavy and versatile as a Yukon, than to brand name alone.
Restoration & Appearance
Which tire should I choose for a period-style 2006 GMC Trucks Yukon?
A period-style 2006 GMC Trucks Yukon tire choice starts with the size that matches the exact trim and wheel package already on the vehicle, whether that is 245/75R16, 265/70R16, 265/70R17, or 275/55R20. Since this Yukon is a modern SUV by Coker-era standards, radial construction is already part of the original fitment character.
Appearance then comes from keeping the proper wheel diameter and choosing a sidewall style that suits the truck’s presentation. Raised white letter tires can support a traditional SUV look, but buyers focused on exact originality should still compare against window sticker details, original sales literature, or marque-specific references.
Does correct tire fitment matter for a 2006 GMC Trucks Yukon restoration?
Correct tire fitment matters on a 2006 GMC Trucks Yukon restoration because wheel diameter and tire proportions strongly affect how the truck sits and how complete it looks. A Yukon restored with the wrong tire size can look noticeably off, especially when a trim originally used 16-inch, 17-inch, or 20-inch wheels.
Fitment also affects practical use beyond appearance. Staying with the right size family for the trim helps preserve proper wheel matching and avoids turning a cosmetic restoration into a clearance or compatibility problem, particularly if the vehicle has replacement wheels or suspension changes from earlier ownership.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2006 GMC Trucks Yukon?
Yes, modifications can affect tire fitment on a 2006 GMC Trucks Yukon even when the tire size matches a stock trim application. Aftermarket wheels, changes in wheel width, altered offset, suspension lifts or lowering, and body or fender modifications can all change how much room the tire has in normal driving and at full steering lock.
That is especially important on a Yukon because the model already spans several factory wheel diameters. A modified truck should be checked for wheel-to-suspension clearance, fender clearance, and actual wheel size before ordering replacement tires, rather than assuming a stock trim fitment will automatically suit the current setup.
What should I inspect before driving a 2006 GMC Trucks Yukon on new tires?
Before driving a 2006 GMC Trucks Yukon on new tires, inspect the wheels for damage, confirm the wheel diameter and width, and make sure the tires are inflated appropriately for their application. It is also smart to check lug hardware, valve stems, and overall tire-to-fender and tire-to-suspension clearance once the new tires are mounted.
A short test drive should include listening for rubbing and watching for any steering interference, vibration, or unusual pull. Since the Yukon is a heavy full-size SUV, uneven suspension wear or alignment issues can show up quickly, so those items deserve attention before putting serious road miles on a fresh set.
How often should tires on a 2006 GMC Trucks Yukon be inspected?
Tires on a 2006 GMC Trucks Yukon should be inspected regularly, not just when tread looks low. A monthly check is a sensible habit for pressure, visible damage, and uneven wear, and the tires should also be looked over before longer drives, towing use, seasonal weather changes, or after the vehicle has been parked for extended periods.
Inspection should include tread condition, cuts, bulges, cracking, and any sign of slow air loss. On an older SUV that may not be driven every day, tire age and storage exposure matter as much as mileage, so a tire that looks acceptable at a glance still deserves a close look before routine road use.
