Pontiac Grand Am 5.0 4-bbl G-body 1978 - Specs of wheel sizes, PCD, Offset and Rims
Standard wheel sizes for Pontiac Grand Am 5.0 4-bbl G-body 1978
Pontiac Grand Am 5.0 4-bbl G-body 1978.
Table of standard and suitable rim sizes for Pontiac Grand Am 5.0 4-bbl G-body 1978.
Not all wheels will fit all cars!
Understand wheel diameter, width, offset, bolt fitment and centre bore before shopping for wheels.
Bolt pattern parameters are usually called PCD:
- LZ (Bolt holes, Lugs)
- PCD (Bolt Pattern or Bolt Fitment)
- ET (Wheel offset)
- DIA (Central bore)
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| Make / model / modification | Year | Wheel marking | Wheel width | RIM diameter | Bolt pattern LZ*PCD | Offset (ET) | Center Bore DIA | OEM or Alternate |
|---|---|---|---|---|---|---|---|---|
| Pontiac Grand Am 5.0 4-bbl G-body | 1978 | 7Jx15 5/120.65 ET8 d70.3 | 7 | 15 | 5X120.65 | 8 | 70.3 | Replacement |