2008 GMC Yukon Wheel Interchange

2008 GMC Yukon Wheel Fitment Guide

Known OEM Fitment For 2008 GMC Yukon

The confirmed wheel fitment data available for the 2008 GMC Yukon is listed below. Factory wheel and tire specifications can vary by trim, package, brake configuration, and market, so do not treat unknown values as a recommendation.

Use the tire sidewall, the driver-side door-jamb label, the owner documentation, and a GMC parts or service source to confirm the original size for your specific Yukon. A wheel matching the bolt pattern is not automatically safe or compatible. Hub fit, offset, width, brake clearance, load capacity, and tire size must also be checked.

How To Use The Wheel Interchange Calculator

Use the calculator on this page to compare Wheels from (donor vehicle) with Installed on (your vehicle). Enter the donor wheel and tire information as accurately as possible, then compare it with the confirmed specifications for your 2008 GMC Yukon.

1. Enter the donor vehicle's wheel diameter, wheel width, offset, bolt pattern, and center bore when available.
2. Enter the known 2008 GMC Yukon values, including the 6x139.7 bolt pattern, 78.1 mm center bore, and M14 x 1.5 thread size.
3. Use the custom wheel size controls to test a proposed rim diameter, width, and offset.
4. Use the custom tire size controls to test section width and aspect ratio.
5. Review the calculator's diameter, clearance, and position comparison. Changing rim diameter also updates the calculated tire diameter.
6. Confirm the result physically before purchase. The calculator cannot inspect brake clearance, suspension damage, bent hubs, tire-brand differences, or the actual condition of a used wheel.

If a factory specification is unknown, leave it unconfirmed rather than guessing. Compare only after checking the vehicle label, wheel markings, OEM service information, or measurements from the vehicle.

Fitment Checklist Before You Buy

• Confirm the 6x139.7 bolt pattern. Do not substitute a visually similar pattern.
• Confirm that the wheel's center bore is compatible with the Yukon's 78.1 mm hub. A smaller bore will not fit over the hub. A larger bore may require properly sized hub-centric rings where appropriate.
• Verify the wheel uses compatible M14 x 1.5 wheel hardware and that the seat type matches the wheel. Do not assume the original lug nuts fit an aftermarket wheel.
• Confirm rim diameter, width, and offset for the exact trim and brake package. These values are not provided here and must not be guessed.
• Check inner clearance to the brake caliper, strut or suspension components, steering components, and wheel well.
• Check outer clearance to the fender, liner, and body during full steering lock and suspension compression.
• Verify the wheel's load rating is suitable for the vehicle and intended use. Do not rely on appearance alone.
• Confirm the replacement tire's load index, speed rating, section width, aspect ratio, and rim approval.
• Inspect used wheels for cracks, bends, corrosion around the bead seat, damaged lug holes, and previous repairs.
• After installation, verify that the tire does not rub and that the wheel rotates freely before driving at road speed.

Plus Sizing And Common Upgrades

Plus sizing changes the wheel diameter while using a lower-profile tire to keep the overall tire diameter reasonably close to the original. The correct target cannot be calculated reliably until the original 2008 GMC Yukon tire size is confirmed, because the supplied OEM tire diameter, section width, and aspect ratio are unknown.

Use the calculator to compare the proposed wheel and tire combination against the confirmed original size. A larger rim can reduce sidewall height and may affect ride comfort, impact protection, tire cost, steering feel, and susceptibility to wheel damage. A wider tire can also increase the risk of contact with suspension or body components.

Do not select a plus-size package using diameter alone. Check wheel offset, backspacing, brake clearance, tire load rating, fender clearance, and the tire manufacturer's approved rim-width range. Any change that substantially alters the tire diameter can affect speedometer readings, electronic systems, gearing, and ground clearance.

Installation Tips

Before installation, clean the hub face and wheel mounting surface. Remove rust, dirt, paint buildup, and debris that could prevent the wheel from sitting flat. Never use loose spacers or improvised washers to solve a fitment problem.

Install the correct wheel hardware by hand first. Lug nuts should turn smoothly and should not cross-thread. Tighten in a star pattern with the vehicle supported safely, then torque the hardware to the vehicle or wheel manufacturer's specified value. The correct torque value is not supplied here, so confirm it in the owner's manual, a GMC service source, or the wheel manufacturer's instructions.

After lowering the vehicle, recheck torque with a calibrated torque wrench. Recheck the wheel hardware after the mileage interval specified by the vehicle or wheel manufacturer, especially after installing aftermarket wheels. Check tire pressure using the vehicle label as the starting reference, then perform a cautious clearance and vibration check.

If the steering wheel vibrates, the vehicle pulls, a tire rubs, or a wheel loses pressure, stop and inspect the installation. Persistent vibration may require tire balancing, runout inspection, or professional fitment evaluation.

Tools And Helpful Supplies

Useful equipment includes a calibrated torque wrench, socket set, jack and properly rated jack stands, wheel chocks, a tire pressure gauge, a tread-depth gauge, and a straightedge or measuring tools for checking clearance. Use equipment rated for the vehicle's weight and follow safe lifting points from the owner documentation.

• Automotive torque wrench for controlled wheel-hardware tightening.
• Automotive tire pressure gauge for checking pressures before and after installation.
• Wheel chocks and properly rated jack stands for safe vehicle support.
• A wire brush and suitable cleaner for preparing the hub and wheel mounting surfaces.
• A tread-depth gauge for inspecting used tires.

Use only wheel spacers, adapters, hub-centric rings, and replacement lug nuts that are specifically engineered for the application. Confirm specifications with the manufacturer and a qualified technician before use.

FAQs

What is the bolt pattern for a 2008 GMC Yukon?

The supplied OEM fitment information lists a 6x139.7 bolt pattern. This identifies six studs arranged on a 139.7 mm pitch circle diameter.

What is the center bore for a 2008 GMC Yukon?

The supplied center bore is 78.1 mm. A replacement wheel should have a center bore that fits the hub correctly. A smaller bore will not install, while a larger bore may need properly sized hub-centric rings where appropriate.

What lug thread size does the 2008 GMC Yukon use?

The supplied thread size is M14 x 1.5. Thread size alone does not confirm lug-nut compatibility. The lug-nut seat must also match the wheel.

What are the factory rim diameter and width?

Those values are unknown from the supplied data and may vary by trim or package. Check the wheel casting or stamping, the door-jamb label, the owner's documentation, and GMC OEM service information. You can then enter the confirmed values in the calculator.

What is the factory wheel offset or backspacing?

The offset and backspacing are unknown from the supplied data. Do not infer them from the bolt pattern or center bore. Confirm the exact wheel specification before ordering, then use the calculator to compare the proposed wheel position and clearance.

Can any 6x139.7 wheel fit the 2008 GMC Yukon?

No. The bolt pattern is only one part of fitment. The wheel must also clear the brakes and suspension, fit the 78.1 mm hub correctly, use compatible hardware, have suitable width and offset, and meet the required load rating.

Can I install larger wheels on a 2008 GMC Yukon?

A larger wheel may be possible, but the correct size cannot be recommended without the original tire specification, proposed wheel dimensions, brake clearance, and tire load requirements. Use the calculator for a comparison, then verify physical clearance and OEM or manufacturer guidance.

Should I use hub-centric rings?

If a wheel has a larger center bore than the 78.1 mm vehicle hub, a correctly sized hub-centric ring may help center the wheel during installation. Rings do not correct an incorrect bolt pattern, offset, load rating, brake clearance, or wheel design. A wheel with a center bore smaller than 78.1 mm will not fit over the hub.

Where can I confirm the original tire size?

Start with the driver-side door-jamb tire label and the tire sidewall. Confirm the result with the owner's manual or a GMC OEM service or parts source for the exact trim and package. Enter the confirmed section width, aspect ratio, and rim diameter in the calculator rather than relying on an assumed size.