Ford Axle Decoder Chart
Code Ratio Capacity Maker Type Yr
12 2.73 3800 FORD REG 1991
17 3.25 3300 FORD REG 1971
17 3.31 3800 FORD REG 1995
18 3.08 3800 FORD REG 1991
19 3.55 3800 FORD REG 1991
25 4.10 5300 FORD REG 1991
29 3.55 5300 FORD REG 1991
35 4.10 6250 FORD REG 1991
36 3.73 7400 DANA REG 1980
39 3.55 6250 FORD REG 1991
45 4.10. 7400 FORD REG 1991
49 3.55 7400 FORD REG 1991
65 4.10. 8250 FORD REG 1991
69 3.55 8250 FORD REG 1991
72 4.63 11000 DANA REG 1991
73 5.13 11000 DANA REG 1991
H5 4.10. 3800 FORD LS 1991
H7 3.31 3800 FORD LS 1995
H8 3.08 3800 FORD LS 1991
H9 3.55 3800 FORD LS 1991
B5 4.10. 5300 FORD LS 1991
B9 3.55 5300 FORD LS 1991
C5 4.10. 6250 FORD LS 1991
C9 3.55 6250 FORD LS 1987
D5 4.10. 7400 FORD LS 1991
F5 4.10. 8250 FORD LS 1991
W5 4.10 8250 FORD LS 1995
*LS = Limited Slip
Transmission codes from 1995 Manual
M = manual 5 speed overdrive (Mazda?)
E = Automatic E40D
G = C6 auto
U = 4R70W (4spd auto with overdrive)
C = manual 5 speed close ratio (Z-F)
W = 5 speed H.D. Overdrive
Engine Codes (8th character in VIN) From 1995 Manual
Y = 4.9
N = 5.0
H = 5.8
R = 5.8 HP
C = 5.9
G = 7.5
F = 7.3 DI Turbo
2 = 4.9 natural gas
Engine Codes From 1991 Manual
Y 4.9
N 5.0
H 5.8
M 7.3 Diesel
G 7.5
This is a general decoder for 1980s thru 1990s Ford Pickup F100 thru F350.
This article was submitted by David DeLeon.
