Reference Details
- Common issue
- Later Muncie or 12-bolt axle added during restoration without original order support.
- Confidence
- reported
- Correct value
- Four-speed or heavy-duty Turbo Hydra-Matic evidence matching the COPO order trail; 12-bolt Positraction axle evidence with correct ratio/date context
- Where to check
- Transmission case stamp/tag, axle tube code/date, build sheet, invoice, and restoration documentation
