Recorded OEM specifications for the 2002 GMC Sierra 1500, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.
Baseline mounting dimensions used for interchange decisions.
Multiple OEM configurations exist for this vehicle. Fitment can vary by trim, brakes, and factory wheel package – confirm your exact setup before buying.
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.
These are vehicle-year records whose recorded OEM ranges overlap this 2002 GMC Sierra 1500. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.
Evaluated 56 donor years. Listed 24 eligible overlaps (not all evaluated years are compatible). Showing all listed.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Approximate position vs the mid OEM package: outer change -0.17 mm, inner change -6.18 mm. This uses aggregated width/offset ranges, not a specific wheel.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Approximate position vs the mid OEM package: outer change -0.17 mm, inner change -6.18 mm. This uses aggregated width/offset ranges, not a specific wheel.
Approximate position vs the mid OEM package: outer change 13.52 mm, inner change 5.52 mm. This uses aggregated width/offset ranges, not a specific wheel.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Approximate position vs the mid OEM package: outer change 11.52 mm, inner change 7.52 mm. This uses aggregated width/offset ranges, not a specific wheel.
Only years with evidence-based interchange relationships are listed. Adjacent years are not assumed compatible.
Compare a donor vehicle or custom wheel against this 2002 GMC Sierra 1500. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.
Compare wheel compatibility between two vehicles
2002 GMC Sierra 1500
Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.
M14 x 1.5
M14 x 1.5 · Thread match only; seat style is not verified
View on Amazon →
M14 x 1.5 · Thread match only; seat style is not verified
View on Amazon →
M14 x 1.5 · Thread match only; seat style is not verified
View on Amazon →As an Amazon Associate we earn from qualifying purchases. Product availability and pricing may change.
This 2002 GMC Sierra 1500 fitment guide uses the known OEM specifications provided for this vehicle. Equipment can vary by trim, cab, bed, brake package, and production configuration, so verify the exact wheel and tire requirements on your truck before purchasing or installing parts.
The following values are the available OEM reference specifications. They should be treated as a starting point for comparison, not as a substitute for checking the vehicle, wheel markings, and OEM service information.
| Specification | Known value |
|---|---|
| Bolt pattern, studs x PCD | 6x139.7 |
| Center bore | 78.1 mm |
| Thread size | M12 x 1.5 |
| OEM rim diameter | 16 inches |
| OEM rim width | 7.0 inches |
| Wheel offset | ET31 mm |
| Backspacing | 4.72 inches |
| OEM tire section width | 235 mm |
| OEM tire aspect ratio | 75 |
| OEM tire rim diameter | R16 |
These specifications do not confirm wheel load rating, brake-caliper clearance, tire load index, speed rating, or the correct lug nut seat for every replacement wheel. Confirm those details with the wheel manufacturer and an OEM source for your specific truck.
Use the calculator to compare a donor vehicle's wheels with the wheels installed on your 2002 GMC Sierra 1500. Enter the donor vehicle information in “Wheels from” and set the GMC Sierra 1500 as “Installed on.” Review the bolt pattern, center bore, offset, wheel width, and diameter before considering a purchase.
You can also select “Custom wheel size” to test a specific rim diameter, width, and offset. Use “Custom tire size” to enter the tire section width and aspect ratio. When you change the rim diameter, the calculator updates the tire diameter in the comparison, helping you identify changes in overall rolling diameter.
A calculator result is a screening tool, not a guarantee of physical clearance or legal suitability. Confirm the result by checking the wheel markings, measuring the vehicle, and test-fitting one wheel without driving if there is any uncertainty.
Plus sizing means using a larger rim diameter with a lower-profile tire while attempting to keep the overall tire diameter close to the original reference. The calculator can help compare custom rim and tire combinations, but it does not replace a physical clearance check.
Increasing wheel width or changing offset can move the tire inward toward suspension components or outward toward the fender. A larger rim can also reduce the amount of sidewall protection and may change ride comfort, steering feel, speedometer behavior, and wheel damage risk. No specific upgrade size is confirmed here because clearance and approved tire options can vary by truck configuration.
Before selecting an upgrade, confirm the tire maker's approved rim-width range, the wheel's load rating, the tire's load index, and the clearance at full steering lock and full suspension compression. Do not use spacers or adapters unless they are specifically approved for the application and installed according to their manufacturer's instructions.
Useful equipment includes a properly sized socket, a breaker bar, a calibrated torque wrench, a jack and jack stands rated for the truck, wheel chocks, a tire pressure gauge, and a tread or clearance measuring tool.
A calibrated automotive torque wrench can help you apply the OEM lug torque accurately. A set of automotive wheel chocks can help prevent vehicle movement while the truck is supported. Always use jack stands on a solid, level surface and never work beneath a vehicle supported only by a jack.
What is the bolt pattern for the 2002 GMC Sierra 1500?
The known reference bolt pattern is 6x139.7, meaning six wheel studs on a 139.7 mm pitch circle diameter. Confirm the wheel's markings and physical fit before installation.
What is the center bore?
The known center bore is 78.1 mm. A replacement wheel with a smaller bore will not fit over the hub. A larger bore may need correctly sized hub-centric rings, depending on the wheel and application.
What wheel offset and backspacing are listed?
The known reference is ET31 mm offset with 4.72 inches of backspacing on a 7.0-inch-wide wheel. Changes can affect inner suspension clearance and outer fender position.
Can I use wheels from another vehicle?
Do not assume a donor vehicle's wheels are compatible based only on appearance or bolt pattern. Compare the donor wheel's bolt pattern, center bore, diameter, width, offset, backspacing, load rating, brake clearance, and lug nut seat in the calculator and against manufacturer information.
What tire size is the known OEM reference?
The provided reference is a 235 mm section width, 75 aspect ratio, and R16 rim diameter. Confirm the exact tire size on the vehicle placard, owner's manual, and tire sidewall because equipment can vary.
Does changing wheel diameter change tire diameter?
Changing rim diameter does not automatically make every tire combination equivalent. The tire's section width and aspect ratio determine sidewall height. Use the calculator to compare custom tire sizes and review the resulting overall diameter, then verify manufacturer and vehicle requirements.
What lug nut thread size is listed?
The known thread size is M12 x 1.5. The lug nut must also match the replacement wheel's seat type and provide adequate thread engagement. Confirm the required hardware with the wheel manufacturer.
Where can I confirm a specification that is missing or varies by trim?
Check the driver's door information label, owner's manual, OEM service documentation, the wheel and tire manufacturer, and the vehicle identification details. If a value is not shown in this guide or the calculator, treat it as unknown rather than assuming it applies to every 2002 GMC Sierra 1500.
Wheel interchange depends on more than bolt pattern. Where data is available, this site compares recorded OEM values:
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.
