1972 Roadrunner GTX, actory air-condition, lapstick. Its performance as aggressive as its look. Original purchased from Montgomery Motor Co in MO in 1972. Ground up restoration by Central Dodge Dealership in MA in 2008. Matching number car. Fender tag, build-sheets, ll documented.

1972 Plymouth GTX Production Numbers

Vin Year/Model Body Style Remarks Amount RM23U2 1972 Road Runner GTX 2 Door Hard Top 440-4 672 Shipped RM23U2 1972 Road Runner GTX 2 Door Hard Top 4-Speed 219 Shipped RM23U2 1972 Road Runner GTX 2 Door Hard Top Automatic 453 Shipped RM23V2 1972 Road Runner GTX 2 Door Hard Top Automatic 2 Known to Exist
Many think that in 1972 Performance had dropped off, his could be true with other but not with Plymouth GTX (when speaking of GTX, ou're speaking of 440 or more, o joke). Equipped with 440 HP2 Super Commando, his 1972 GTX use same high performance parts as the 1971. Even with 727 automatic it launch quick at tremendous acceleration, onestly I cannot imagine how to handle the car if it were 4-speed. The 440cubic's massive torque increase exponentially, onstantly pushing you back to driver seat, nlike small block 4-speed this happening only when changing gear.
I have owned several Mopar muscle, his is the only one I would keep for the next generation. I know the next one will enjoy him as much as I do.
Decoding of Fender Tag: Bottom to Top, eft to Right

Code Description E86440-4 Barrel High Performance
D34TorqueFlite Automatic TransmissionRM23R = Plymouth Road RunnerM = Medium23 = 2 Door HardtopU2GU = 440 1-4BBL Dual-Badge Roadrunner/GTX (1972 model only) 2 = 1972G = St. Louis, MO, USA150875Sequence Number '150875'GF7Paint Code: Dark Green MetallicD6F6Trim Grade/Style/ColorD = Deluxe6 = Vinyl Bucket SeatsF6 = GreenGF7Upper Door Frame: Dark Green MetallicC16Date Built: 12 / 16 / 1971261177Order Number: 261177GF7Roof Type OR Color: Dark Green MetallicUBuilt to Specifications for USA OrderC16Console w/ BucketsC56Bucket Seats 1972 upG11Tinted Glass AllG36Left Hand Remote, ight Hand Manual Outside MirrorH51Air Conditioning /w HeaterJ253 Speed Variable WipersL31Hood / Fender Mount Turn SignalM21Roof Drip Rail MoldingsM31Belt & Hood MoldingN23Electronic Ignition 72 onlyN41Duel Exhaust w/o TipsN85TachometerR11Music Master Radio AMV8WTransverse Stripe - White2626 in. RadiatorENDEnd of Codes