1978 GMC C25 Wheels & Rims
Shop Wheels for 1978 GMC C25
Showing 8 of 8+ wheels compatible with the 1978 GMC C25
Your 1978 GMC C25 Sierra, whether you're running the Base, High Sierra, Sierra Classic, or Sierra Grande trim, rolls on an 8x165.1 bolt pattern. The factory setup consists of 16x6.5 wheels with a 31 offset. ThreePiece.us stocks premium options from Carolina Forged, Vision, WELD Off-Road, American Truxx, Black Rhino, Fuel 1PC, American Racing, and Tuff that fit your truck perfectly.
We've verified every wheel to bolt on securely to your C25's hub. Choose from ten compatible sizes ranging from 16.5x6 up to 17x9, all shipping free to the lower 48 states. Whether you're after classic style or modern performance, you'll find the right setup for your GMC without guessing about fitment.
1978 GMC C25 Wheel Fitment Specifications
The 8x165.1 bolt pattern determines which wheels physically bolt onto your truck, while the 117mm center bore ensures a hub-centric fit. The factory equips this truck with 16x6.5 wheels at a +31 offset.
Lug Type
nut
Thread Size
M14x1.5
Torque Spec
89 ft-lbs
TPMS
No
1978 GMC C25 Compatible Wheel Sizes
| Wheel Size | Offset Range | Compatible Tires | Notes |
|---|---|---|---|
| 16.5x6 | +null to +31 | 8.75-16.5 | — |
| 16x6.5 | +null to +31 | 235/85R16, 7.50-16 | — |
| 16.5x6.5 | +null to +31 | 9.50-16.5 | — |
| 16x7 | +null to +30 | 245/75R16, 265/70R16, 235/80R16 | — |
| 16x7.5 | +null to +30 | 245/75R16, 265/70R16, 235/80R16 | — |
| 17x7.5 | +null to +25 | 245/70R17, 255/70R17, 275/65R17 | — |
| 16x8 | +null to +30 | 245/75R16, 265/70R16, 235/80R16 | — |
| 17x8 | +null to +25 | 245/70R17, 255/70R17, 275/65R17 | — |
| 18x8 | +null to +25 | 285/60R18, 255/70R18, 33/10.50R18 | — |
| 17x8.5 | +null to +25 | 245/70R17, 265/70R17, 275/65R17 | — |
| 18x8.5 | +null to +25 | 285/60R18, 255/70R18, 275/60R18 | — |
| 20x8.5 | +null to +25 | 285/50R20, 31/12.50R20 | — |
| 17x9 | -7 to +30 | 265/70R17, 31/12.50R17, 32/11.50R17 | — |
Best Wheel Brands for the GMC C25
- Fuel 1PC — Maverick, Assault, Blitz
- Fuel Forged — FF12, FF19
- Method Race Wheels — MR305, MR701
- American Racing — AR924, VN507
- Heritage Wheel
Complete Your 1978 GMC C25 Build
- GMC C25 suspension upgrades — pairs well with a wheel upgrade
- GMC C25 exhaust systems — pairs well with a wheel upgrade
- GMC C25 suspension — pairs well with a wheel upgrade
- GMC C25 brakes — pairs well with a wheel upgrade
- Wheel & tire packages — pre-mounted, balanced, shipped ready to bolt on
- Installation accessories — hub rings, extended studs, TPMS kits, spacers