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Ford Truck Transmission Types and Codes

(See Maximum-Duty Codes in second table)

Number of Speeds Type 1961 1962 1963 1964 1965 1966 1967
3 Standard light Duty (Ford)

* note: code A applies to trucks with 3-speed standard Ford transmission; also applies to C & N600 series trucks built at Louisville with New Process 435 4-speed transmission

A A A A* A* C C
3 Medium Duty (Warner T89C or T89E) D D D D D D D
3 Heavy Duty (Warner T87E or T87G) E E E E E E E
3 Overdrive (Ford with Warner T85 or T86) B B B B B B B
4 Synchronized (Warner T98A) F F F F F F F
4 Synchronized (Dagenham-Zephyr)

*note: Econoline only

    F* F* F*    
5 Medium Duty Direct (Clark 250-V)

*note: Clark and New Process transmission assemblies have been used as alternates in production for 1962 trucks

J J* J J J M M
5 Medium Duty Direct (New Process N5A or N5B)

*note: Clark and New Process transmission assemblies have been used as alternates in production for 1962 trucks

  J*          
5 Medium Duty Overdrive (Clark 251 V0)

*note: Clark and New Process transmission assemblies have been used as alternates in production for 1962 trucks

K K* K K K K V
5 Medium Duty Overdrive (New Process N5C or N5D)

*note: Clark and New Process transmission assemblies have been used as alternates in production for 1962 trucks

  K*          
4 Synchronized (New Process 435)

* note: code A applies to trucks with 3-speed standard Ford transmission; also applies to C & N600 series trucks built at Louisville with New Process 435 4-speed transmission

      A* A* A A
4 Synchronized (New Process 435)

*note: Code N applies to trucks with 5-speed Spicer 5652 transmission; also applies to F600 series equipped with New Process 435 4-speed transmission

      N* N*    
5 Heavy Duty Direct (Clark 2651-V1, 2653-V1)

*note: Clark and New Process transmission assemblies have been used as alternates in production for 1962 trucks

L L* L L L L L
5 Heavy Duty Direct (New Process N5G or N5H)

*note: Clark and New Process transmission assemblies have been used as alternates in production for 1962 trucks

  L*          
5 Heavy Duty Direct (New Process 541-FL)           O O
5 Heavy Duty Direct (Clark 2621-V1, 2622-V1)

*note: Clark and New Process transmission assemblies have been used as alternates in production for 1962 trucks

W W* W W W N R
5 Heavy Duty Direct (New Process N5L or N5M)

*note: Clark and New Process transmission assemblies have been used as alternates in production for 1962 trucks

  W*          
Number of Speeds Type 1961 1962 1963 1964 1965 1966 1967
5 Heavy Duty Direct  (Clark 305-V)         F H H
5 Heavy Duty Direct (Clark 307-V)         I I I
5 Heavy Duty Overdrive (Clark 264-V0)

*note: Clark and New Process transmission assemblies have been used as alternates in production for 1962 trucks

M M* M M M J J
5 Heavy Duty Overdrive (New Process N5J or N5K)

*note: Clark and New Process transmission assemblies have been used as alternates in production for 1962 trucks

  M*          
5 Heavy Duty Overdrive (New Process 541-FO)           P P
5 Extra Heavy Duty Direct (Spicer 5652)

*note: Code N applies to trucks with 5-speed Spicer 5652 transmission; also applies to F600 series equipped with New Process 435 4-speed transmission

N N N N* N* Q Q
5 Extra Heavy Duty Direct (Spicer 5756B) P P P P P S S
5 Exclusive Direct-Diesel (Fuller 5H75)       9 9 G G
5 Exclusive Direct Drive (401-477-534 eng.) (Spicer 5652)

*note: Code N applies to trucks with 5-speed Spicer 5652 transmission; also applies to F600 series equipped with New Process 435 4-speed transmission

N N N N* N*    
5 Exclusive Direct Drive (401-477-534 eng.) (Spicer 5756B) P P P P P    
5 Exclusive Heavy Duty Direct (Spicer 6352) - Iron Q Q Q Q Q N N
5 Exclusive Heavy Duty Direct (Spicer 6352B) - Iron U U U U U L W
5 Exclusive Heavy Duty Direct (Spicer 6354) - Aluminum   4 4 4 4 2 2
5 Exclusive Heavy Duty Direct (Spicer 6354B) - Aluminum   8 8 8 8 6  
5 Exclusive Heavy Duty Direct (Spicer 6452A) - Iron V V V V V M M
5 Exclusive Heavy Duty Direct (Spicer 6454A) - Aluminum   7 7 7 7 5  
5 Exclusive Heavy Duty Direct (6852G) - Iron R R R R R U U
5 Exclusive Heavy Duty Direct (6854G) - Aluminum   6 6 6 6 4  
5 Exclusive Heavy Duty Direct (Spicer 6453A) - Iron S S S S S K K
5 Exclusive Heavy Duty Direct (Spicer 6455A) - Aluminum   5 5 5 5 3  
5 Exclusive Heavy Duty Direct (Fuller 5H74)       X X F F
5 Exclusive Heavy Duty Direct (Fuller T-905-A)- Iron           X X
5 Exclusive Heavy Duty Direct (Fuller T-905-B) - Iron           H H
5 Exclusive Heavy Duty Direct (Fuller 5HA-74) - Aluminum           7 7
5 Exclusive Heavy Duty Direct (Fuller 5HA-75) - Aluminum           8  
8 Roadranger Heavy Duty Direct (Fuller R46) T T T T T T T
  Fordomatic C            
3 Heavy Duty Cruise-O-Matic G G G G G G G
6 Transmatic (Allison MT30) H H H H H X X
6 Transmatic (Allison MT40)   2 2 2 2 Y Y
6 Transmatic (Allison MT41, MT42)   3 3 3 3 1 1
3 C4 Automatic Dual-Range       6 6    
Number of Speeds Type 1961 1962 1963 1964 1965 1966 1967
1961 through 1967 Ford Truck Maximum Duty Transmission Codes
Number of Speeds Type Code
1961-1965 1966 1967
5 Direct Drive (Fuller 5W74) * note: code A applies to trucks with 3-speed standard Ford transmission; also applies to C & N600 series trucks built at Louisville with New Process 435 4-speed transmission A*    
5 Direct Drive (Spicer 8052) - Iron C A A
5 Direct Drive (Spicer 8054) - Aluminum Z P  
5 Overdrive (Spicer 8051A, 8051C) - Iron B J P
5 Overdrive (Spicer 8055A, 8055C) - Aluminum Y O  
10 Direct Drive (Fuller R96) - Iron D B B
10 Direct Drive (Fuller RA96) - Aluminum E C  
10 Direct Drive (Fuller RT-910)   V V
10 Overdrive (Fuller RTO-910)   W S
10 Overdrive (Fuller R960) - Iron I E  
10 Overdrive (Fuller RA960) - Aluminum G D  
12 Overdrive (Spicer 8125) - Aluminum O R  
12 Overdrive (Spicer 8312) - Aluminum     Q
15 Direct Drive (Fuller RT-915)   9 9
15 Overdrive (Fuller RTO-915)   I I

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1961-1967 Ford Truck Identification Menu