Reference Details
- Common issue
- Assuming a 3.89 Traction-Lok or conventional axle from the R-code engine claim instead of checking the car-specific axle code and drivetrain records.
- Confidence
- documented
- Correct value
- Factory identification guidance separates axle coding by convention: numbers designate conventional axles and letters designate locking differentials.
- Where to check
- Vehicle-data plate rear-axle code; corroborate with axle tag and build records for the individual car