Reference Details
- Common issue
- Period-correct Muncie or 12-bolt hardware added during restoration without a matching Nickey evidence trail. · 1967 Chevrolet Camaro Nickey 427
- Confidence
- reported · 1967 Chevrolet Camaro Nickey 427
- Correct value
- M21 and 12-bolt Positraction claims should match case/stamp evidence, axle code/date, ratio, and source documentation. · 1967 Chevrolet Camaro Nickey 427
- Where to check
- Transmission case and stamp, axle tube stamp, differential tag/build records, restoration documentation · 1967 Chevrolet Camaro Nickey 427
- Common issue
- Performance gearbox, 12-bolt, or Positraction claim inferred from restoration choices rather than documentation. · 1967 Chevrolet Chevy II Nova SS L79 327
- Confidence
- documented · 1967 Chevrolet Chevy II Nova SS L79 327
- Correct value
- 4-speed manual transmission and documented rear-axle evidence for the claimed survivor · 1967 Chevrolet Chevy II Nova SS L79 327
- Where to check
- Transmission stamp/tag evidence, shifter context, axle stamp/tag, and paperwork · 1967 Chevrolet Chevy II Nova SS L79 327
- Common issue
- Period-correct Muncie or 12-bolt hardware added during restoration without a matching Dana evidence trail. · 1968 Chevrolet Camaro Dana 427
- Confidence
- reported · 1968 Chevrolet Camaro Dana 427
- Correct value
- Muncie and 12-bolt Positraction claims should match case/stamp evidence, axle code/date, ratio, and source documentation. · 1968 Chevrolet Camaro Dana 427
- Where to check
- Transmission case and stamp, axle tube stamp, differential tag/build records, restoration documentation · 1968 Chevrolet Camaro Dana 427
- Common issue
- Replacement Muncie transmissions and 12-bolt axles are common in restored high-performance Novas. · 1969 Chevrolet Nova Yenko 427
- Confidence
- reported · 1969 Chevrolet Nova Yenko 427
- Correct value
- M21 and 12-bolt Positraction/4.10 claims should be supported by stampings, date codes, and paperwork. · 1969 Chevrolet Nova Yenko 427
- Where to check
- Transmission case/stamping, axle tube stamping, restoration documentation, and certification records · 1969 Chevrolet Nova Yenko 427
- Common issue
- Later performance driveline parts added during restoration and presented as period Royal work. · 1970 Pontiac GTO Royal Bobcat
- Confidence
- reported · 1970 Pontiac GTO Royal Bobcat
- Correct value
- Transmission and Safe-T-Track/ratio claims should match case stamps, axle codes, PHS/build records, and Royal evidence. · 1970 Pontiac GTO Royal Bobcat
- Where to check
- Transmission case, axle tube stamp, differential tag, PHS/build records, receipts · 1970 Pontiac GTO Royal Bobcat
