Reference Details
- Common issue
- Unstamped or differently coded rear axle represented as original SD-455 axle
- Confidence
- reported
- Correct value
- CM for 3.42 axle; GY for 3.08 axle
- Where to check
- Front of the passenger-side axle tube
Authenticity reference
SD-455 rear axle tube stamps
numbers matching · reported
Cars With This Authenticity Marker
1 linked car page.
1973 Pontiac
1973 Pontiac Firebird Trans Am SD-455
Factory Pontiac Firebird Trans Am with LS2 SD-455 option