Chrysler M platform
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| Manufacturer | Chrysler Corporation |
|---|---|
| Production | 1977-1989 |
| Predecessor | F-body R-body |
| Successor | Y-body |
| Class | Full-size |
| Body style | 2-door coupe 4-door sedan 4-door station wagon |
| Layout | FR layout |
| Engine | 3.7 L Slant 6 I6 5.2 L LA V8 5.9 L LA V8 |
| Transmission | 4-speed A833 manual 3-speed A727 automatic 3-speed A904 automatic 3-speed A999 automatic |
| Wheelbase | 108.7 in (2,761 mm) 112.7 in (2,863 mm) |
The M-Bodies were Chrysler Corporation's successor to the F-body Aspen/Volare. The platform, almost identical to the F, was introduced in 1977 and was the basis for some mid-sized Chrysler models until its demise in 1989. The M-body was also the successor to the short-lived R-body, as the Chrysler New Yorker and Plymouth Gran Fury moved to it following the R-body's demise in 1981. The M platform was the final production passenger car with semi-elliptical leaf springs sold in the U.S.
The M-cars were built at St. Louis, Missouri. Beginning in late 1986 (1987 models) and through the last 1989 year, the American Motors plant in Kenosha, Wisconsin was also used for production.
By 1983-84, it became clear that most private buyers preferred the equally roomy but cheaper and more fuel economical K-cars; however, the M's long-proven traditional engineering, handling, and V8 engine availability appealed to police and taxi fleets, allowing the car's continued existence until the end of the decade.
Vehicles on this platform include:
- 1977-1989 Dodge Diplomat
- 1977-1981 Chrysler LeBaron
- 1978-1981 Chrysler Town and Country station wagon
- 1978-1979 Dodge Coronet (South America)
- 1978-1982 Plymouth Caravelle (Canada)
- 1980-1981 Dodge Dart (Mexico)
- 1982-1989 Plymouth Gran Fury
- 1982 Chrysler New Yorker
- 1983 Chrysler New Yorker Fifth Avenue
- 1983-1989 Plymouth Caravelle Salon (Canada)
- 1984-1989 Chrysler Fifth Avenue
There were three body styles offered:
- 2-door coupe - 1977-1981
- 4-door sedan - 1977-1989
- 4-door station wagon - 1978-1981
There were two wheelbases used:
- 108.7 in - 1980-1981 2-door models
- 112.7 in - 1977-1979 2-door models and 1977-1989 4-door models
Engines used with this platform include:
- 225 Slant 6 (1977-1983)
- 318 V8 (1977-1989)
- 360 V8 (1977-1979)
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