1978 Gmc K25 Wheels & Rims
Shop Wheels for 1978 Gmc K25
Showing 8 of 8+ wheels compatible with the 1978 Gmc K25
Your 1978 GMC K25—whether you're driving a Base, High Sierra, Sierra Classic, or Sierra Grande—rolls on a distinctive 8x165.1 bolt pattern with factory 16x6.5 wheels at 31 offset. Finding the right upgrade has never been easier. ThreePiece.us stocks premium brands like Carolina Forged, Vision, WELD Off-Road, and American Truxx, all verified to bolt directly onto your K-series truck.
We carry ten compatible sizes ranging from 16.5x6 all the way up to 17x9, giving you flexibility whether you want a subtle refresh or a bold stance change. Every wheel we ship is personally checked to ensure perfect fitment on your GMC, and you'll enjoy free shipping throughout the lower 48 states.
1978 Gmc K25 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 K25 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 K25
- Fuel 1PC — Maverick, Assault, Blitz
- Fuel Forged — FF12, FF19
- Method Race Wheels — MR305, MR701
- American Racing — AR924, VN507
- Heritage Wheel
Complete Your 1978 Gmc K25 Build
- Gmc K25 suspension upgrades — pairs well with a wheel upgrade
- Gmc K25 exhaust systems — pairs well with a wheel upgrade
- Gmc K25 suspension — pairs well with a wheel upgrade
- Gmc K25 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