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The Duster competed with Ford's slightly smaller semi-fastback Maverick compact that was also introduced in 1970, and the slightly larger semi-fastback Chevrolet Nova whose design was introduced in 1968. While the Maverick and Nova were offered in a 4-door configuration, Chrysler managers used the Duster nameplate only for the 2-door coupe. The traditional Valiant name was retained on the 4-door sedan and 2-door hardtop. The Duster resulted from the Plymouth planning staff's desire to use their allotted 1970 restyling money for something different than the usual two and four-door Valiants. The Valiant platform was used, with front end sheetmetal the same, but completely different from the cowl back. The Duster was also created to fill the slot that was formerly occupied by the Valiant-based Barracuda. When the Barracuda moved from its A-body platform to the new E-body platform in 1970, this left a hole in Plymouth's lineup for a sporty, inexpensive compact.

Numerous variants of the Duster were offered including model names that included Feather Duster, Gold Duster, Silver Duster, Space Duster, Duster Twister, 340 Duster and 360 Duster. The various models targeted customers seeking economy, cargo capacity, or performance.

The design changes on the Valiant models, the Duster also received a new hood, grille, front fenders, bumpers, and taillights for 1973. The taillights on previous years mounted from the inside and had a flush appearance. Starting in 1973, the taillights were mounted from the outside and were trimmed in chrome. These remained unchanged through 1976. New U.S. safety regulations called for 5-mile-per-hour (8.0 km/h) front bumper impact protection that was accomplished through a shock absorbing and stronger bumper rail with rubber guards.

Simpler single-piston slider-type disc brake calipers were introduced for 1973 (standard on 318-powered cars and with power-assist on 340 models), replacing the Kelsey Hayes four-piston calipers. Disc brake-equipped Dusters now had the more-common 5 lugs on 4.5" wheel bolt pattern. All 340 and some 318 engine-equipped cars received the simplified 8.25" rear axle assembly (with wheel bearings riding directly on the axle shaft and endplay being take by C-clips); these axles also featured the 5-on-4.5" wheel bolt pattern. (This axle assembly replaced the 8.75" "drop-out" arrangement seen on some 1966-'72 A-bodies). The 225-powered cars retained the 5 lugs on 4" pattern on vehicles with the standard drum brakes. All models received larger front wheel bearings and increased spindle diameter. Electronic ignition became standard across the board.

We welcome offers and trades on all our inventory--www.uniquemankato.com --- For more details or question call 507 386 1726 or email sales@uniquemankato.com