68-69 Camaro Z28 Original Tire Goodyear Wide Tread GT E70-15 1967 Date Code

[jeffschevelle]

The Anghel summary is great and very comprehensive, but it is also a little bit confusing where it sticks the discussion of the two different BURLEY-CAMINO formats and the TUFSYN-PACKER format together.

For the years that I primarily care about, here's the simplified version:

1961-1965

First digit (Year)
3 or 5 = 61
7 or 9 = 62
4 or 6 = 63
1 or 2 = 64
8 or 0 = 65

Second digit (Month)
B = Jan
U = Feb
R = Mar
L = Apr
E = May
Y = Jun
C = Jul
A = Aug
M = Sep
I = Oct
N = Nov
O = Dec

1966-1972 (with understanding that some 1970 and later tires used the later systems on page 6 or page 7 of the Anghel summary)

First digit (Year)
M or Z = 66
K or Y = 67
L or T = 68
J or U = 69
E or W = 70
H or X = 71
G or S = 72

Second digit (Month)
T = Jan
U = Feb
F = Mar
S = Apr
Y = May
N = Jun
P = Jul
A = Aug
C = Sep
K = Oct
E = Nov
R = Dec

Now I wish someone could figure out Firestone's pre-DOT date coding! Several years ago I even called Firestone and spoke to their "company historian", but she had no clue what I was even asking about!