Authenticity reference

Four-speed Hemi transmission path

numbers matching · documented

1969 Plymouth Road Runner Hemi front view; contributor-captioned Hemi example used as visual context, not standalone proof. 1969 Plymouth Road Runner 426 Hemi

Reference Details

Common issue: Non-original four-speed conversions or undocumented drivetrain swaps.
Confidence: documented
Correct value: D21 A833 four-speed manual with Hurst shifter on decoded example
Where to check: Fender tag, broadcast sheet, transmission stamping and driveline documentation

Cars With This Authenticity Marker

1 linked car page.

1969 Plymouth

1969 Plymouth Road Runner 426 Hemi

426 Street Hemi, dual four-barrels, 425 advertised horsepower

Sources & Documentation

MMC Detroit 1969 Plymouth Hemi Road Runner trim-tag document MMC Detroit 1969 Plymouth Hemi Road Runner trim-tag document