Pontiac Firebird Trans Am WS6 4th gen (1998-2002) Wheel Offset Calculator | Fitment Stance
Compare wheel and tire dimensions for the Pontiac Firebird Trans Am WS6 (4th gen (1998-2002)) against the recorded OEM baseline: 9x17 ET50, 275/40R17, 5x120.65.
Recorded OEM baseline
Verification pending. Recorded values are provisional; confirm the exact vehicle baseline before calculations or purchases.
| Years | 4th gen (1998-2002) |
|---|---|
| Market | unspecified |
| Front wheel | 9x17 ET50 |
| Front tire | 275/40R17 |
| Rear wheel / tire | 9x17 ET50; 275/40R17 |
| Bolt pattern | 5x120.65 |
| Center bore | Not verified |
| Thread size | Not verified |
| Fastener / seat | Not verified |
How to use this record
The calculator compares nominal wheel and tire position with this OEM baseline. It does not calculate fender, suspension, brake, steering, or loaded clearance. Tires with the same printed size can differ by manufacturer. Confirm applicability for the exact year, market, trim, and package, then measure or test-fit before buying.
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