B Model Truck Production
Model                  Years                    Quantity                    Chassis Version
B­13                      64­-65                    124                            P, RP
B­20                      53­-60                    1,113                         P
B­23                      63­-65                    131                            P, RP
B­30                      53­-65                    4,115                         P, PC, S, T, X
B­31                      53­-60                    177                            P, T
B­33                      55­-65                    437                            P, RP, T
B­331                    63­-64                    113                            P
B­332                    63                          1                                P
B­334                    63­-64                    5                                P
B­37                      62                          1                                X
B­41                      53­-54                    220                            S, X
B­42                      53­-65                    19,729                      P, PC, X, S, SX, T, LT, ST, TPB
B­421                   54-­65                     2,144                        P, S, SX, T
B­422                   60­-65                     923                           P, S, T, X
B­4226                 61­-64                    14                              SX
B­424                   61­-65                    14                               X
B­426                   58­-66                    221                            S, SX
B­428                   61­-62                   10                               S
B­43                     54­-65                   1,841                          S, RS, X, RX, XE, LT
B­44                     55­-58                   76                               T, TPB
B­45                     64­-65                   142                             S, X
B­46                     58­-65                   473                             P, S, T
B­462                   60­-65                   110                             P, S, T
B­4626                60                         1                                  S
B­47                     64­-65                   437                             P, S, RS, X
B­473                  56-­62                    128                             S, X
B­50                    53­-55                     233                            T
B­53                    62­-66                     2,625                         S, SE, STE, RSE
B­57                    64­-66                     281                            S
B­576                 65­-66                     26                               S
B­60                   53­-63                     6,357                          P, S, SX, ST, LT, T­HS, T­M, X
B­61                   53­-66                     47,459                        P, S, SE, RS, RSE, T, ST, LT,
                                                                                              LST, RT, RST, X, SX, RSX
B­613                 55­-66                    4,810                           P, S, SE, T, LT, ST, LST, X, SX
B­615                 62­-66                    575                              S, SX, RS, RSX, T, RT, LT, ST,
                                                                                              LST
B­62                   54­-58                    1,463                            SX
B­63                   54­-58                    2,028                            SX­C, SX­M

B­633                 56-­58                    486                               SX
B­64                   54­-57                    119                               T, LT
B­65                   55­-58                    1,623                            T, LT, ST, LST
B­653                 55­-58                    93                                 T, LT
B­655                 55                         10                                  ST
B­66                   58­-65                    177                               S, T, ST
B­67                   57­-65                    8,780                            T, LT, S, ST, LST
B­673                 58­-65                    176                               T, LT, ST, LST
B­68                   60­-66                    1,503                            P, T, LT, S, ST, X, SX
B­70                   53­-66                    1,073                            P, T, LT, ST, LST
B­71                   53­-58                    522                               T, S, ST
B­72                   56­-65                    98                                 T, LT, S, LS, LST
B­73                   55­-66                    2,520                            T, LT, T­M, S, LS, LST
B­733                 55­-66                    720                               T, LT, S, LS, LST
B­75                   55­-66                    1,619                            T, LT, S, LS, ST, LST
B­753                 55­-66                    1,825                            T, LT, S, LS, LST
B­755                 63­-66                    456                               T, LT, S, LS, ST, LST
B­77                   58­-64                    113                               T, LT, S, LS, LST
B­773                 57­-66                    264                               T, LT, S, LS, LST
B­79                   61                          10                                  LST
B­80                   56­-65                    368                                X, SX
B­81                   55­-66                    2,626                             X, SX
B­813                 56­-66                   969                                 X, SX, RSX
B­8136               57­-66                   85                                   SX
B­815                 63­-66                   220                                 X, SX, ST
B­83                   56­-66                   1,164                              T, T­M, S, ST, X, SX, RSX, EWX

B­833                 56­-66                   216                                 X, SX, RSX, ST
B­85                   56­-64                   77                                    T, ST, SX
B­853                 56­-65                   29                                    SX
B­86                   57, 59                   5                                      SX
B­87                   56­-64                    75                                   ST, SX
B­873                 56­-66                   167                                 ST, SX, RSX

                                                       
                                                       126,745 total

B Model Fire Truck Production
Model                  Years                    Quantity                    Chassis Version
B­20                      58                              1                                F
B­21                      57                              9                                F
B­405                   55-­58                        9                                 CF
B­475                   56­-58, 61                 42                               CF
B­505                   54­-58, 64, 66           48                               F, FSW
B­75                     54­-63                        54                               F
B­795                   56                             1                                  F
B­85                     54­-66                        455                             F, FA, FC, FCD, FD, FT, FSW
B­95                     54­-66                        236                             F, FD, FMD
B­125                   54­-58, 60, 63­-66      53                               F, FC

                                                            908 Total

B Model School Bus Production
Model                  Years                    Quantity                    Chassis Version
B­30                      55­-59, 61, 62            33                               B
B­33                      65                              10                               B
B­34                      53­-61                        376                             B, BD
B­35                      54                              10                               B
B­43                      59, 61, 63­-65           171                             B

                                                            600 Total

 

128,253 total B Model Production



Chassis Versions
What do all the letters mean?


B –­ school bus chassis
C ­- flat face cowl for the addition of a delivery body
E ­- built for export
F ­- fire truck chassis
L ­- light weight or weight reduced by using aluminum components
P ­- platform chassis (single axle straight truck)
R ­- right hand drive. This designation was started in 1964 but right hand drive available
      prior as option.
S ­- six wheel chassis (tandem axle)
T ­- tractor chassis
X ­- severe or extreme service chassis

Combine any of the basic letters to get a different chassis

PC –­ flat face cowl platform chassis
LST – ­ light weight six wheel tractor chassis
SX ­- six wheel extreme service chassis
STE – ­ six wheel tractor chassis for export
RX ­- right hand drive extreme service chassis

These are some odd versions

BD –­ school bus ­ no idea what the D means. Little more than 100 built 1955­1956
EWX –­ don’t have a clue on the letters but the picture shows a mean looking B83
            built in 1965 with 3 drive axles
SX­C –­ six wheel extreme service chassis, may have been built in Canada
SX­M –­ six wheel extreme service chassis, no idea what M stands for
T­HS –­ tractor, don’t know about HS
T­M –­ tractor, don’t know about M
TPB –­ tractor piggy back

Now the fire truck combinations! The good guys at the Mack Museum and Harvey
Eckart had to do some “head scratchin” on these

CF –­ fire truck with Chrysler Corp. drive train
FA ­- aerial ladder fire truck
FC –­ fire truck chassis without fire body. This designation started in 1965
FCD –­ fire truck chassis with diesel engine without fire body
FD –­ fire truck with diesel engine. This designation started in 1964
FMD –­ don’t have a clue. Only built in 1963
FSW – ­six wheel (tandem axle) fire truck. This designation started in 1958 for
            fire trucks but had been used in trucks prior to the B model series.
FT –­ fire truck tractor. This designation started in 1965 but fire truck tractors were also
        built before this date
but had been used in trucks prior to the B model series.
FT –­ fire truck tractor. This designation started in 1965 but fire truck tractors were also
        built before this date.

 

Download a copy of the B-Model Production Numbers from the link below.