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Authenticity reference

Transmission and axle package consistency

numbers matching · documented

1969 Plymouth GTX hardtop exterior context from reviewed Commons media. 1969 Plymouth GTX 440

Reference Details

Common issue
Four-speed or Dana ratio claims without Track Pak/Super Performance axle documentation.
Confidence
documented
Correct value
TorqueFlite standard; four-speed GTX 440 path tied to Track Pak with Dana Sure-Grip evidence.
Where to check
Fender tag, broadcast sheet, transmission stampings, axle housing/tag, and package-code evidence.

Cars With This Authenticity Marker

1 linked car page.

Sources & Documentation