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Authenticity reference

Transmission and rear axle

numbers matching · documented

1973 Gran Torino Sport SportsRoof; restored body reference with non-factory wheels 1973 Ford Gran Torino Sport

Reference Details

Common issue
Later gearbox, floor-shift conversion, twelve-bolt swap, or added limited slip represented as factory installed · 1967 Acadian Canso
Confidence
documented · 1967 Acadian Canso
Correct value
Engine-appropriate synchronized three-speed, V8 four-speed, or Powerglide with matching controls, console path, axle ratio, Positraction status, dates, and records · 1967 Acadian Canso
Where to check
Transmission case and stamp, pedals, linkage, shifter, console, driveshaft, axle housing and carrier, ratio, dates, and paperwork · 1967 Acadian Canso
Common issue
Later gearbox, floor-shift conversion, axle swap, or added limited slip represented as factory installed · 1967 Beaumont Custom
Confidence
documented · 1967 Beaumont Custom
Correct value
Engine-appropriate three-speed, four-speed, Powerglide, or 396 Hydra-Matic with matching controls, axle, Positraction status, dates, and records · 1967 Beaumont Custom
Where to check
Transmission case and stamp, pedals, linkage, shifter, console, driveshaft, axle housing and carrier, ratio, dates, and paperwork · 1967 Beaumont Custom
Common issue
A later Toploader, C6, nine-inch, or locker represented as factory without code/date agreement. · 1970 Ford Falcon
Confidence
documented · 1970 Ford Falcon
Correct value
Data-plate transmission/axle codes and surviving tags compatible with the documented engine and package · 1970 Ford Falcon
Where to check
Door data plate, transmission tag and casting, axle tag, invoice or Marti report, and service history · 1970 Ford Falcon
Common issue
Later Australian M20, five-speed, changed axle, or added limited slip represented as 1970 delivery equipment · 1970 Holden Torana
Confidence
documented · 1970 Holden Torana
Correct value
Model- and engine-appropriate manual, Opel four-speed, or Trimatic with matching controls, axle ratio, limited-slip status, dates, and records · 1970 Holden Torana
Where to check
Gearbox case, pedals, linkage, tunnel, console, driveshaft, axle housing and carrier, ratio, dates, and documentation · 1970 Holden Torana
Common issue
Later four-speed, five-speed, nine-inch axle, changed ratio, or added limited slip presented as 1971 delivery equipment · 1971 Chrysler Valiant Charger
Confidence
documented · 1971 Chrysler Valiant Charger
Correct value
Configuration-correct three-speed manual or eligible TorqueFlite with matching controls, clutch, 2.92/3.23 axle, Sure-Grip status, dates, and records · 1971 Chrysler Valiant Charger
Where to check
Gearbox case, shifter, pedals, clutch, tunnel, driveshaft, axle housing and carrier, ratio, dates, and records · 1971 Chrysler Valiant Charger
Common issue
A later four-speed, C6, or Traction-Lok axle represented as factory without code and date agreement. · 1973 Ford Gran Torino Sport
Confidence
documented · 1973 Ford Gran Torino Sport
Correct value
Transmission code and axle code/tag compatible with the documented engine and package · 1973 Ford Gran Torino Sport
Where to check
Certification label/data plate, transmission tag/casting, axle tag, invoice, window sticker or serial-specific Marti report, and service records · 1973 Ford Gran Torino Sport

Cars With This Authenticity Marker

6 linked car pages.

Sources & Documentation

Marti Auto Works under Ford Motor Company license Marti Reports