GMC Jimmy Wheel Lug Patterns & Fitment Guide
The GMC Jimmy features specific wheel lug patterns that vary by model year. Understanding the lug count × PCD (pitch circle diameter), offset ET, and center bore dimensions is crucial for selecting compatible wheels and tires.\n\nTypically, the GMC Jimmy uses a 6×139.7 mm lug pattern, common among many GMC trucks and SUVs. Wheel offset (ET) values generally range between 15 mm and 25 mm, affecting clearance and handling. The center bore diameter is usually 71.5 mm, which ensures proper hub centering.\n\nRim sizes for the GMC Jimmy can vary depending on the year and trim level, commonly ranging from 15 to 17 inches in diameter. Always consult year-specific fitment tables to confirm exact specifications before purchasing replacement or aftermarket wheels.\n\nThis catalog provides a year-sorted reference table listing GMC Jimmy wheel lug patterns, offsets, center bores, and rim dimensions to help you make informed decisions for wheel upgrades or replacements.
| Make / model / trim | Year | Tire | Rim width (in) | Rim diam. (in) | Bolt pattern | Offset ET | Bore DIA | Mounting |
|---|---|---|---|---|---|---|---|---|
| GMC Jimmy 4.3 | 1998 | 245/65R17 | 8 | 17 | 6×127 | 40 | 70.1 | M12*1,5 |
| GMC Jimmy 4.3 AWD | 1998 | 245/65R17 | 8 | 17 | 6×127 | 40 | 70.1 | M12*1,5 |
| GMC Jimmy 4.3 | 1997 | 245/65R17 | 8 | 17 | 6×127 | 40 | 70.1 | M12*1,5 |
| GMC Jimmy 4.3 AWD | 1997 | 245/65R17 | 8 | 17 | 6×127 | 40 | 70.1 | M12*1,5 |
| GMC Jimmy 4.3 | 1996 | 245/65R17 | 8 | 17 | 6×127 | 40 | 70.1 | M12*1,5 |
| GMC Jimmy 4.3 AWD | 1996 | 245/65R17 | 8 | 17 | 6×127 | 40 | 70.1 | M12*1,5 |
| GMC Jimmy 4.3 | 1995 | 245/65R17 | 8 | 17 | 6×127 | 40 | 70.1 | M12*1,5 |
| GMC Jimmy 4.3 AWD | 1995 | 245/65R17 | 8 | 17 | 6×127 | 40 | 70.1 | M12*1,5 |
| GMC Jimmy 4.3 | 1994 | 245/65R17 | 8 | 17 | 6×127 | 40 | 70.1 | M12*1,5 |
| GMC Jimmy 4.3 AWD | 1994 | 245/65R17 | 8 | 17 | 6×127 | 40 | 70.1 | M12*1,5 |
FAQ
- What is the typical lug pattern for a GMC Jimmy?
- The common lug pattern for the GMC Jimmy is 6×139.7 mm, meaning six lug nuts arranged on a 139.7 mm pitch circle diameter.
- Why is wheel offset (ET) important for the GMC Jimmy?
- Wheel offset affects wheel positioning relative to the hub, influencing clearance, suspension geometry, and vehicle handling. The GMC Jimmy typically uses offsets between 15 and 25 mm.
- How do I confirm the center bore size for GMC Jimmy wheels?
- The center bore for GMC Jimmy wheels is generally 71.5 mm, ensuring proper hub centering, but it's recommended to verify this by year and wheel model to ensure fitment.
Tire size calculatorShow
Compare two tire sizes — diameter, speedometer error, and clearance change.
| Size 1 | Size 2 | Diff | Diff(%) | |
|---|---|---|---|---|
| Diameter | 25.0" | 25.4" | 0.5" | 1.89% |
| Width | 7.7" | 8.5" | 0.8" | 10.26% |
| Circumference | 78.4" | 79.9" | 1.5" | 1.86% |
| Profile height | 5.0" | 4.2" | -0.7" | -15.08% |
| Turnover per mile | 807 | 793 | 14 | -1.73% |
| Clearance | - | - | +0.2" | - |
Speedometer Error
(First wheel OEM size)
| Reading | 20 mph | 30 mph | 40 mph | 50 mph | 60 mph | 70 mph | 80 mph | 90 mph |
|---|---|---|---|---|---|---|---|---|
| Actual | 20.4 | 30.5 | 40.7 | 50.9 | 61.1 | 71.2 | 81.4 | 91.6 |