Chrysler M platform: Difference between revisions

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{{More citations needed|date=April 2019}}
{{More citations needed|date=April 2019}}
{{Infobox automobile platform
{{Infobox automobile platform
| name        = Chrysler M Platform
| name        = Chrysler M platform
| image      = File:1985 Plymouth Gran Fury (18325175022).jpg
| image      = File:1985 Plymouth Gran Fury (18325175022).jpg
| caption    = 1985 Plymouth Gran Fury  
| caption    = 1985 Plymouth Gran Fury  
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}}
}}


The '''Chrysler M Platform''' (or "M-Body") was an [[mid-size|intermediate]]-sized [[automobile platform]] used by [[Chrysler]] motors from   1977 to 1989.  It was a successor to the [[Chrysler F platform|F-body]], as used on the [[Dodge Aspen|Dodge Aspen/ Plymouth Volare]]. The M-body was also the successor to the short-lived [[Chrysler R platform|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 a solid rear axle mounted on Hotchkiss-style, parallel semi-elliptical [[leaf springs]] sold in the U.S.<ref name="Flammang">{{Cite book |last=Flammang |first=James M. |url=https://www.worldcat.org/oclc/43301709 |title=Standard catalog of American cars, 1976-1999 |date=1999 |publisher=Krause Publications |others=Ron Kowalke |isbn=0-87341-755-0 |edition=3rd |location=Iola, WI |oclc=43301709}}</ref>
The '''Chrysler M platform''' (or "M-body") was an [[mid-size|intermediate]]-sized [[automobile platform]] produced by [[Chrysler]] Corporation from 1977 to 1989.  It was a successor to the [[Chrysler F platform|F-body]], as used on the [[Dodge Aspen|Dodge Aspen/ Plymouth Volare]]. The M-body was also the successor to the short-lived [[Chrysler R platform|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 a solid rear axle mounted on Hotchkiss-style, parallel semi-elliptical [[leaf springs]] sold in the U.S.<ref name="Flammang">{{Cite book |last=Flammang |first=James M. |title=Standard catalog of American cars, 1976-1999 |date=1999 |publisher=Krause Publications |others=Ron Kowalke |isbn=0-87341-755-0 |edition=3rd |location=Iola, WI |oclc=43301709}}</ref>


The M-cars were built at [[St. Louis, Missouri]], and [[Newark, Delaware]], with initial debut (LeBaron/Diplomat series) in spring 1977 as 1977 1/2 models,<ref>https://www.xr793.com/wp-content/uploads/2017/01/1978-Chrysler-Lebaron.pdf {{Bare URL PDF|date=March 2022}}</ref> with production shifting to [[Windsor, Ontario]], through 1983, then moving to Fenton, Missouri. Beginning in February 1987 and ending with 1989 model year, the [[American Motors]] Main plant in [[Kenosha, Wisconsin]], was utilized for assembly.<ref>{{cite web| url = https://www.chicagotribune.com/news/ct-xpm-1986-07-01-8602160986-story.html| title = AMC PLANT TO BUILD CHRYSLERS – Chicago Tribune| website = [[Chicago Tribune]]| date = July 1986}}</ref>
The M-cars were built at [[St. Louis, Missouri]], and [[Newark, Delaware]], with initial debut (LeBaron/Diplomat series) in spring 1977 as 1977 1/2 models,{{cn|date=October 2025}} with production shifting to [[Windsor, Ontario]] through 1983, then moving to Fenton, Missouri. Beginning in February 1987 and ending with 1989 model year, the [[American Motors]] Main plant in [[Kenosha, Wisconsin]], was utilized for assembly.<ref>{{cite web| url = https://www.chicagotribune.com/news/ct-xpm-1986-07-01-8602160986-story.html| title = AMC PLANT TO BUILD CHRYSLERS – Chicago Tribune| website = [[Chicago Tribune]]| date = July 1986}}</ref>


By 1983–84, it became clear that most private buyers preferred the equally roomy but cheaper and more fuel-efficient [[Chrysler K platform|K-cars]]; however, the M's long-proven traditional engineering, handling, and V8 engine availability appealed to [[police]] and [[taxicab|taxi]] fleets, allowing the car's continued existence until the end of the decade.
By 1983–84, it became clear that most private buyers preferred the equally roomy but cheaper and more fuel-efficient [[Chrysler K platform|K-cars]]; however, the M's long-proven traditional engineering, handling, and V8 engine availability appealed to [[police]] and [[taxicab|taxi]] fleets, allowing the car's continued existence until the end of the decade.
In mid-1988, the Chrysler M-bodies received a driver side air bag.<ref>{{Cite news|url=https://www.nytimes.com/1988/05/26/business/company-news-airbags-on-the-way-as-chrysler-gives-in.html|title = COMPANY NEWS; Airbags on the Way as Chrysler Gives in|newspaper = The New York Times|date = 26 May 1988|last1 = Holusha|first1 = John}}</ref>
In mid-1988, the Chrysler M-bodies received a driver side air bag.<ref>{{Cite news|url=https://www.nytimes.com/1988/05/26/business/company-news-airbags-on-the-way-as-chrysler-gives-in.html|title = COMPANY NEWS; Airbags on the Way as Chrysler Gives in|newspaper = The New York Times|date = 26 May 1988|last1 = Holusha|first1 = John}}</ref>
After the M-bodies were discontinued in mid-1989, Chrysler Corporation didn't build a rear wheel drive car outside of trucks and specialty models until LX based cars.
After the M-bodies were discontinued in mid-1989, Chrysler Corporation did not build a rear wheel drive car again (outside of trucks and specialty models) until the 2005 [[Chrysler LX platform|LX]]-based cars.


Vehicles on this platform include:
Vehicles on this platform include:
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* 1984–1989 [[Chrysler Fifth Avenue#1982.E2.80.931989: The M-body years|Chrysler Fifth Avenue]]
* 1984–1989 [[Chrysler Fifth Avenue#1982.E2.80.931989: The M-body years|Chrysler Fifth Avenue]]
*1979–1980 [[Monteverdi Sierra]] Convertible   
*1979–1980 [[Monteverdi Sierra]] Convertible   
Three body styles offered:<ref name=":0">https://www.xr793.com/wp-content/uploads/2017/01/1980-Chrysler-Lebaron.pdf {{Bare URL PDF|date=March 2022}}</ref>
Three body styles offered:<ref name=":0">{{cite web |url=https://www.xr793.com/wp-content/uploads/2017/01/1980-Chrysler-Lebaron.pdf |title=Chrysler LeBaron '80 (brochure) |publisher=Chrysler Corporation |date=August 1979}}</ref>
* 2-door [[coupe]] – 1977–1981
* 2-door [[coupe]] – 1977–1981
* 4-door [[sedan (car)|sedan]] – 1977–1989
* 4-door [[sedan (car)|sedan]] – 1977–1989
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Two wheelbases used:
Two wheelbases used:
* 108.7&nbsp;in – 1980–1981 2-door<ref name=":0" />
* 108.7&nbsp;in – 1980–1981 2-door<ref name=":0" />
* 112.7&nbsp;in – 1977–1979 2-door, 1978–1981 Station Wagon  and 1977–1989 4-door<ref>https://www.xr793.com/wp-content/uploads/2016/11/1981-Chrysler-Lebaron.pdf {{Bare URL PDF|date=March 2022}}</ref>
* 112.7&nbsp;in – 1977–1979 2-door, 1978–1981 Station Wagon  and 1977–1989 4-door<ref>{{cite web|url=https://www.xr793.com/wp-content/uploads/2016/11/1981-Chrysler-Lebaron.pdf |title=1981 Chrysler LeBaron (brochure) |publisher=Chrysler Corporation |date=August 1980}}</ref>


Engines used with this platform include:
Engines used with this platform include:
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{{Reflist}}
{{Reflist}}
;General
;General
*[http://www.allpar.com Allpar Forums]
*[https://www.allpar.com/threads/dodge-diplomat-plymouth-gran-fury-caravelle-and-chrysler-lebaron-new-yorker-and-fifth.228725/#post-1085222823 Dodge Diplomat, Plymouth Gran Fury / Caravelle, and Chrysler LeBaron, New Yorker and Fifth] (''By Ed Hennessy and by Frank Billington'')
**[https://www.allpar.com/threads/dodge-diplomat-plymouth-gran-fury-caravelle-and-chrysler-lebaron-new-yorker-and-fifth.228725/#post-1085222823 Dodge Diplomat, Plymouth Gran Fury / Caravelle, and Chrysler LeBaron, New Yorker and Fifth] (''By Ed Hennessy and by Frank Billington'')
*[http://www.allpar.com/model/rwdbodies.html Rear Wheel Drive Mopar Bodies, 1957–2017] (''Mopar Body Types By  Ed Hennessy Date 1998'')
**[http://www.allpar.com/model/rwdbodies.html Rear Wheel Drive Mopar Bodies, 1957–2017] (''Mopar Body Types By  Ed Hennessy Date 1998'')
*[https://gazeo.com/automotive/vehicles/Chrysler-M-body-LPG-blast-from-the-past,article,6712.html Chrysler M-body LPG – blast from the past] (''Chrysler M-body LPG – Blast from the Past By Robert Markowski Date 2-13-2013'')
**[https://gazeo.com/automotive/vehicles/Chrysler-M-body-LPG-blast-from-the-past,article,6712.html Chrysler M-body LPG – blast from the past] (''Chrysler M-body LPG – Blast from the Past By Robert Markowski Date 2-13-2013'')
*[https://www.angelfire.com/ca/mikesspot/history.html Chrysler Fifth Avenue & Chrysler M-body History]
**[https://www.angelfire.com/ca/mikesspot/history.html Chrysler Fifth Avenue & Chrysler M-body History]
*http://www.policecarwebsite.net/policepackage/mbody.html
**http://www.policecarwebsite.net/policepackage/mbody.html
*[http://blog.consumerguide.com/goodbye-gran-fifthlomat-the-chrysler-m-body-cars-of-1989/ Goodbye Gran Fifthlomat: The Chrysler M-Body Cars of 1989] (''By Tom Appel Date 4-29-2014'')
**[http://blog.consumerguide.com/goodbye-gran-fifthlomat-the-chrysler-m-body-cars-of-1989/ Goodbye Gran Fifthlomat: The Chrysler M-Body Cars of 1989] (''By Tom Appel Date 4-29-2014'')


[[Category:Chrysler platforms|M]]
[[Category:Chrysler platforms|M]]

Latest revision as of 13:35, 6 November 2025

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The Chrysler M platform (or "M-body") was an intermediate-sized automobile platform produced by Chrysler Corporation from 1977 to 1989. It was a successor to the F-body, as used on the Dodge Aspen/ Plymouth Volare. 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 a solid rear axle mounted on Hotchkiss-style, parallel semi-elliptical leaf springs sold in the U.S.[1]

The M-cars were built at St. Louis, Missouri, and Newark, Delaware, with initial debut (LeBaron/Diplomat series) in spring 1977 as 1977 1/2 models,Script error: No such module "Unsubst". with production shifting to Windsor, Ontario through 1983, then moving to Fenton, Missouri. Beginning in February 1987 and ending with 1989 model year, the American Motors Main plant in Kenosha, Wisconsin, was utilized for assembly.[2]

By 1983–84, it became clear that most private buyers preferred the equally roomy but cheaper and more fuel-efficient 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. In mid-1988, the Chrysler M-bodies received a driver side air bag.[3] After the M-bodies were discontinued in mid-1989, Chrysler Corporation did not build a rear wheel drive car again (outside of trucks and specialty models) until the 2005 LX-based cars.

Vehicles on this platform include:

Three body styles offered:[4]

Two wheelbases used:

  • 108.7 in – 1980–1981 2-door[4]
  • 112.7 in – 1977–1979 2-door, 1978–1981 Station Wagon and 1977–1989 4-door[5]

Engines used with this platform include:

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See also

References

Inline

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General