OEM wheel and tire fitment specs for the 2008 Chevrolet Suburban 1500, including bolt pattern (PCD), center bore diameter, thread size, rim diameter, rim width, wheel offset, and backspacing.
Recorded OEM specifications for the 2008 Chevrolet Suburban 1500, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.
Multiple OEM configurations exist for this vehicle. Fitment can vary by trim, brakes, and factory wheel package – confirm your exact setup before buying.
Center-bore records disagree: year-level hub 78.1 mm vs trim range 78.3–78.3 mm. Interchange below does not treat this as an unqualified match.
Thread-only product links are shopping examples, not verified fits. Seat style is not confirmed here. As an Amazon Associate we earn from qualifying purchases.
Donor vehicles with overlapping OEM specs
These are vehicle-year records whose recorded OEM ranges overlap this 2008 Chevrolet Suburban 1500. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.
Evaluated 24 donor years. Listed 24 eligible overlaps (not all evaluated years are compatible). Showing all listed.
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Center-bore records disagree (target year-level hub 78.1 mm vs trim range 78.3–78.3 mm; donor year-level hub 78.1 mm vs trim range 78.3–78.3 mm). Unqualified overlap is not claimed until the conflict is resolved. Approximate position vs the mid OEM package: outer change -9.52 mm, inner change -9.52 mm. This uses aggregated width/offset ranges, not a specific wheel.
Check wheel configurationCenter-bore records disagree
Bolt pattern6x139.7 · Same recorded PCD
Center bore78.3 mm · same recorded hub figure
Wheel geometryNeeds configuration check
Donor width/offset sits outside the known OEM envelope for this vehicle. Precomputed data suggested a spacer; geometry was re-checked against OEM envelope.
Recorded vehicle-side thread for the 2008 Chevrolet Suburban 1500 is M14x1.5. This donor year is recorded as M12x1.5. That is the vehicle stud/nut thread, not an intrinsic thread stamped on the wheel. Hardware must match this vehicle’s studs and the selected wheel’s seat and engagement. Existing hardware may be reusable if it already matches. Seat style is not in this dataset, so products are not a verified fit.
Dataset suggestionHub-centric rings ≈ 100.3 → 78.3 mm – not a verified installation requirement.
Hub-centric rings of about 100.3 → 78.3 mm mm may be relevant if the wheel bore is larger than the hub; clearance is not verified. Donor width/offset sits outside the known OEM envelope for this vehicle.
Chevrolet Suburban 1500 Years With Compatible Wheels
Only years with evidence-based interchange relationships are listed. Adjacent years are not assumed compatible.
Compare a donor vehicle or custom wheel against this 2008 Chevrolet Suburban 1500. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.
Compare
Compare wheel compatibility between two vehicles
Wheels from (donor vehicle)
Selected Car:
Custom wheel size (optional)
Tip: change values here to simulate custom wheels and immediately see the impact in the comparison below.
Custom tire size (optional)
Installed on (your vehicle)
Selected Car:
2008 Chevrolet Suburban 1500
Compare Rims
Specification
Wheels from
Installed on
Result (Click it)
Bolt Pattern
The total number of bolt holes and the diameter of the circle they form.
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6x139.7
Center Bore
The hole in the center of the wheel that fits over the vehicle’s hub.
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78.3 mm
Thread Size
The size and spacing of the threads on the bolts or nuts that hold the wheel in place.
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M14 x 1.5
Rim Diameter
The wheel diameter in inches that determines which tire sizes will fit.
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17"
Rim Width
The distance between the inner edges of the wheel is measured in inches.
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7.5"
Wheel Offset
How far the wheel sits inward or outward relative to the hub mounting surface.
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31 mm
Backspacing
Shows how much space the wheel takes up toward the inside of the vehicle.
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-
Wheel Fasteners
The type of hardware used to secure the wheel to the vehicle.
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-
Compare Tires
Specification
Wheels from
Installed on
Result (Click it)
Section Width
The width of the tire from sidewall to sidewall, measured in millimeters.
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Aspect Ratio
The height of the tire’s sidewall expressed as a percentage of its width.
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Diameter
The wheel diameter for which the tire is designed to fit.
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Tire Pressure
The recommended air pressure for safe and efficient driving.
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Overall Diameter
The total height of the tire and wheel combined affects clearance and speedometer accuracy.
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-
Wheel Fitment Parts for the 2008 Chevrolet Suburban 1500
Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.
As an Amazon Associate we earn from qualifying purchases. Product availability and pricing may change.
2008 Chevrolet Suburban 1500 Wheel Fitment Guide
Known OEM Fitment For 2008 Chevrolet Suburban 1500
These specifications are reported for the 2008 Chevrolet Suburban 1500. Packages varied by trim. If a value on your vehicle differs, verify it on your tire placard, the owner manual, or with a GM dealer using your VIN, then confirm with the calculator on this page.
Bolt pattern
6x139.7
Center bore
78.1 mm
Thread size
M14 x 1.5
Reported OEM wheel
20 x 8.5, ET 31 mm, backspacing 5.47 in
Reported OEM tire
265/70R17
Notes:
Multiple OEM wheel and tire packages existed in 2008. The values above may come from different trims. Confirm what your Suburban 1500 actually has before comparing new wheels.
Use your door jamb tire placard to confirm the factory size and load rating, then match the calculator inputs to your vehicle.
How To Use The Wheel Interchange Calculator
Open the calculator on this page and select a donor vehicle or enter a custom wheel size for the Wheels from side.
Set Installed on to 2008 Chevrolet Suburban 1500 so the tool uses the specs for your SUV.
To try an aftermarket setup, use Custom wheel size to enter rim diameter, width, and offset. Use Custom tire size to set section width and aspect ratio.
Review inner clearance and outer poke changes. Inner clearance tells you how close the wheel and tire move toward the strut, upper control arm, and inner fender. Outer poke shows how far they move toward the fender lip.
Changing rim diameter updates tire diameter in the comparison. Keep overall tire diameter close to stock to protect ride, ABS, and speedometer accuracy.
If your current vehicle does not match the reported values above, enter your actual factory size from the tire placard, then compare options against that baseline.
Fitment Checklist Before You Buy
Bolt pattern: Wheel must be 6x139.7.
Center bore: Hub bore is 78.1 mm. If an aftermarket wheel has a larger bore, plan for hub-centric rings sized to 78.1 mm.
Thread size: Lug nuts must match M14 x 1.5 studs. Confirm seat type matches the wheel design.
Offset and width: Use the calculator to keep inner clearance safe and avoid excessive poke. Physically measure brake caliper and suspension clearance on your vehicle.
Brake clearance: Spoke shape and barrel design matter. Test fit a front wheel to ensure caliper clearance.
Tire diameter and load index: Match or exceed the OEM load rating. Keep overall diameter close to stock to limit speedometer error.
TPMS: 2008 models use TPMS. Verify sensor compatibility for your VIN and that the new wheels accept the sensors.
Spare and towing: Make sure the spare strategy still works and that any changes do not reduce tow or payload limits.
Plus Sizing And Common Upgrades
The calculator supports plus sizing. A common goal is to keep overall tire diameter close to stock while changing rim diameter. For reference, a 265/70R17 tire is approximately 31.6 inches in overall diameter. If you choose a larger rim, select a tire size that stays near this diameter to protect drivability and gearing feel.
Plus 1 or Plus 2: Increase rim diameter and choose a lower-profile tire so overall diameter remains near 31.6 inches. Use the calculator to confirm.
Wider stance: Small increases in width can improve grip. Use the calculator to check both inner clearance and outer poke, and inspect fender and liner clearance at full lock and full bump.
Off-road setups: Taller sidewalls help off-road, but confirm clearance at full suspension compression and with chains if you use them.
Do not assume any size fits. Use the calculator and a test fit before buying a full set.
Installation Tips
Work on a cool vehicle parked on level ground. Support with jack stands at the frame and chock the wheels.
Remove wheels, then clean hub faces and rotor hats with a wire brush. Any rust or debris can cause vibration.
If aftermarket wheels have a larger center bore, install hub-centric rings to 78.1 mm. Dry fit the ring and wheel and check for flush mounting.
Transfer or install TPMS sensors per the wheel manufacturer instructions. Perform the GM TPMS relearn after installation following your owner manual.
Hand start all lug nuts on the M14 x 1.5 studs. Snug in a star pattern, then torque to the value in your owner manual in 2 to 3 stages.
After a short test drive, recheck torque. Re-torque again after 50 to 100 miles.
If you changed overall tire diameter, use the calculator to estimate speedometer error and consider calibration if needed.
What is the bolt pattern on a 2008 Chevrolet Suburban 1500
6x139.7.
What center bore do I need
78.1 mm. If a wheel has a larger bore, use hub-centric rings sized to 78.1 mm. If it is smaller, it will not fit without machining.
What is the thread size for the lug nuts
M14 x 1.5. Verify the seat style that matches your wheel design before purchasing lug nuts.
Were 20 inch wheels available on 2008 Suburban 1500
A 20 x 8.5 wheel with ET 31 mm and 5.47 in backspacing is reported for some trims. Packages varied. Confirm your original equipment with the tire placard or a GM dealer, then compare in the calculator.
Is 265/70R17 an OEM tire size
265/70R17 is reported for some trims. Verify against your door jamb placard. Use the calculator to compare other sizes to your actual OEM baseline.
What offset should I choose if I go wider
Offset needs depend on wheel width, brake clearance, and bodywork. Use the calculator to see inner clearance and outer poke changes, then test fit to confirm there is no rubbing at full lock and full compression.
Do I need new TPMS sensors
2008 models use TPMS. You can transfer compatible sensors or buy new ones that match your VIN and wheel type. Perform the TPMS relearn after installation per the owner manual.
What is the correct lug nut torque
Consult your owner manual or OEM service information for the exact torque. Do not guess. Torque in a star pattern and re-torque after 50 to 100 miles.
Methodology and sources
Wheel interchange depends on more than bolt pattern. Where data is available, this site compares recorded OEM values:
Bolt pattern / PCD
Center bore direction (donor wheel bore must not be smaller than the hub)
Wheel diameter, width, and offset against known OEM ranges
A normal wheel spacer does not change bolt pattern. Hub rings cannot enlarge a wheel bore that is smaller than the hub. Brake clearance and tire package fitment still require vehicle-specific checks when not confirmed in the dataset.
