ElpiAuto
Specs across the GMC range
| Models in our database | 3 |
|---|---|
| Years covered | 1991–today |
| Bolt patterns used | 6x139.7, 5x120, 5x115 |
| Centre bore | 66.9–78.1 mm |
| Lug thread | M14x1.5, M12x1.5 |
3 different bolt patterns show up across the GMC range, so a wheel from one model won't necessarily fit another — check each model's page for its exact pattern.
Every GMC generation we have uses cone-seat lug bolts, the style most brands other than VW-group use.
Common questions
Do all GMC models use the same bolt pattern?
3 different bolt patterns show up across the GMC range, so a wheel from one model won't necessarily fit another — check each model's page for its exact pattern.
What centre bore do GMC wheels use?
Centre bore ranges from 66.9 to 78.1 mm across the range — a spigot ring bridges the gap if you cross-shop between models.