I'd say you were correct....
Chrysler Rear Wheel Drive Body Codes - 1957 to 1989
As with most automobile manufacturers, Chrysler Corporation used body platform designations (Body Codes) for various vehicle lines that were manufactured.* Below is a list of the different body codes (referred to as A, B, C, D, E, F,* J, M, and R bodies), and their respective models for rear wheel drive (RWD) passenger car lines manufactured by Chrysler from 1957 through 1989.* It should be noted that Chrysler's practice of naming chassis lines by letter did not begin until 1964 or 1965.* Earlier model years listed below are grouped with named later model chassis lines based on their similarity.* Chrysler introduced unibody construction in 1960, so models produced after that time will have more similarities with their later counterparts.*
Body Codes:
A - Body*(Compact models) (1960 to 1976)
* 1961 to 1962 Dodge Lancer
* 1963 to 1976 Dodge Dart
* 1969 to 1976 Dodge Dart Swinger
* 1971 to 1972 Dodge Demon
* 1973 to 1976 Dodge Dart Sport
* 1964 to 1969 Plymouth Barracuda
* 1960 to 1976 Plymouth Valiant
* 1970 to 1976 Plymouth Duster
* 1971 to 1976 Plymouth Scamp
* Wheelbases:*
* 106: '63-'66 Valiant; '64-'66 Barracuda; '63-'66 Dart wagons
* 106.5: '60-'62 Valiant; '61-'62 Lancer
* 108: '67-'73 Valiant; '67-'69 Barracuda; '70-'76 Duster; '71-'72 Demon;'73-'76 Dart Sport
* 111: '71-'76 Scamp; '74-'76 Valiant; '63-'76 Dart (ex. wagons);Canadian Valiant (Dart front clip, Valiant body, 111" wb)
B - Body*(Mid size models) (1962 to 1979)**
* 1962 Dodge Dart
* 1962 to 1964 Dodge Polara
* 1963 to 1964 Dodge 220 (Canada only)
* 1963 to 1964 Dodge 330 and 440
* 1965 to 1976 Dodge Coronet
* 1968 to 1971 Dodge Super Bee
* 1966 to 1978 Dodge Charger
* 1969 Dodge Charger Daytona
* 1977 to 1978 Dodge Monaco
* 1978 to 1979 Dodge Magnum
* 1962 to 1964 Plymouth Savoy, Fury
* 1962 to 1970 Plymouth Belvedere
* 1965 to 1974 Plymouth Satellite
* 1968 to 1975 Plymouth Road Runner
* 1967 to 1971 Plymouth GTX
* 1970 Plymouth Super Bird
* 1975 to 1978 Plymouth Fury
* 1975 to 1979 Chrysler Cordoba
* 1979 Chrysler 300
* Wheelbases:
* 115: '71-'79 all 2 door models (incl. Charger, Magnum, Cordoba, 300)
* 116: '62-'70 Plymouths ex. wagons; '62-'66 Plymouth wagons; '62 Dart; '62-'64 Polara; '63-'64 Dodge 220, 330, 440
* 117: '67-'74 Plymouth wagons; '71-'74 Plymouth 4 doors; '65-'70 Dodges
* 117.5: '75-'78 Plymouth and Dodge 4 doors & wagons
* 118: '71-'74 Dodge 4 doors & wagons
C - Body*(Full size models)* (1957 to 1978)*
* 1957 to 1959 Plymouth Plaza
* 1957 to 1961 Plymouth Savoy
* 1957 to 1961 Plymouth Belvedere
* 1957 to 1961 Plymouth Fury
* 1965 to 1974 Plymouth Fury
* 1966 to 1969 Plymouth VIP
* 1975 to 1977 Plymouth Gran Fury
* 1957 to 1961 Dodge Coronet
* 1957 to 1959 Dodge Royal
* 1960 to 1961 Dodge Dart
* 1960 to 1961 Dodge Seneca
* 1960 to 1961 Dodge Phoenix
* 1960 to 1961 Dodge Pioneer
* 1960 to 1961 Dodge Polara
* 1962 to 1965 Dodge Custom 880
* 1965 to 1973 Dodge Polara
* 1965 to 1976 Dodge Monaco
* 1975 to 1977 Dodge Royal Monaco
* 1957 to 1974 Chrysler* - All models
* 1965 to 1971 Chrysler 300
* 1965 to 1978 Chrysler Newport
* 1965 to 1978 Chrysler New Yorker
* 1967 to 1975 Imperial (C-bodies per Galen Govier, Gil Cunningham - (Chrysler engineer from 1963 to 1982).
* Wheelbases:
* 119: '65-'68 Plymouths (ex. wagons)
* 120: '69-'73 Plymouths (ex. wagons), '74 Fury I/II
* 121: '65-'66 Plymouth wagons; '65-'66 Dodges; '65-'66 Chrysler wagons
* 121.5: '75-'77 Plymouths (ex. wagons); '74-'77 Dodges (ex. wagons)
* 122: '67-'73 Plymouth wagons, '74 Fury III/Gran Fury; '67-73 Dodges; '67-'73 Chrysler wagons
* 124: '74-'77 Plymouth and Dodge wagons; '65-'78 Chrysler sedans; '74-'78 Chrysler wagons; '74-'75 Imperials
D - Body*(1957 to 1973)
* 1957 to 1966 Imperials* - all models (per Galen Govier and Gil Cunningham - (Chrysler engineer from 1963 to 1982).
* Wheelbases:
* 127: '67-'73
* 129: '57-'66
E - Body*(1970 to 1974)
* 1970 to 1974 Plymouth Barracuda ( Cuda, AAR ) All were 108" wheelbase
* 1970 to 1974 Challenger ( R/T, T/A) All were 110" wheelbase
F - Body*(1976 to 1980)
* 1976 to 1980 Dodge Aspen, Aspen R/T
* 1976 to 1980 Plymouth Volare, Road Runner
* 1979 to 1980 Plymouth Volare Duster (special Volare package and not a separate model)
* Wheelbases:*
* 108.7": All 2 door models
* 112.5": '76 4 door models
* 112.7": '77-'80 4 door models
J* -* Body*(1980 to 1983) (All models were 112.7" Wheelbase)*
* 1980 to 1983 Dodge Mirada
* 1980 to 1983 Chrysler Cordoba
* 1981 to 1983 Chrysler Imperial
M - Body*(1977 to 1989)
* 1977 to 1989 Dodge Diplomat
* 1977 to 1981 Chrysler LeBaron
* 1977 to 1981 Plymouth Caravelle (Canada)
* 1982 to 1989 Plymouth Gran Fury
* 1982 Chrysler New Yorker
* 1983 Chrysler New Yorker 5th Avenue
* 1984 to 1989 Chrysler 5th Avenue
* Wheelbases:*
* 108.7": '80-'81 2 door models
* 112.7": '77-'79 2 door models; '77-'89 4 door models
R - Body*(1979 to 1981) (All models were 118.5" wheelbase, and based on a stretched B-body)
* 1979 to 1981 Chrysler Newport
* 1979 to 1981 Chrysler New Yorker
* 1979 to 1981 Chrysler New Yorker Fifth Avenue
* 1979 to 1981 Dodge St Regis
* 1980 to 1981 Plymouth Gran Fury
Sources:
* Standard Catalog of Chrysler 1914 - 2000 - Edited by James T. Lenzke
* MOPAR BODY TYPES Compiled by Ed Hennessy
* National Mo-Parts
* Allpar.com
* Carnut.com link