58 Assembly Date Codes
Thanks,
Mike Swatek
Claremore, OK
http://www.swatek.com/truck.htm
The date codes for '57-'60 are set up a little different than those for the '61-'66 where you can tell from the sequential production number.
To find out the assembly date on your '58, you have to look on your rating plate for the code labeled "Date". it can be found between "Model" and "Trans".
The numbers represent the day, and the letter that follows represents the month and year.
For example..........Date code 15P....(15 = 15th day), (P = February 1958).
Date codes:
First year......Second year......Month
A................N................January
B................P................February
C................Q................March
D................R................April
E................S................May
F................T................June
G................U................July
H................V................August
J................W................September
K................X................October
L................Y................November
M................Z................December
Hope this helps out.

Looks like mine was born 8 May 1958, just 10 days after me.
Mike Swatek
Claremore, OK
http://www.swatek.com/truck.htm
J = Sep 57
K = Oct 57
L = Nov 57
M = Dec 57
N = Jan 58 (note: there is no "O" in the sequence)
P = Feb 58
Q = Mar 58
R = Apr 58
S = May 58
T = Jun 58
U = Jul 58
V = Aug 58
W = Sep 58
X = Oct 58
Y = Nov 58
Z = Dec 58
The assembly plant codes for the 58/60 are:
A-Atlanta; D-Dallas; G-Chicago; K-Kansas City; L-long Beach; H-Lorain; U-Louisville; E-Manwah; N-Norfolk; S-Pilot Plant; R-San Jose; and P- St.Paul.
If you need more, e-mail me at visalia6439(No Email Addresses In Posts!) or get a catalog from John's (714-563-F100).
Daryl
>Thanks Kenny.
>
>Looks like mine was born 8 May 1958, just 10 days after me.
>
>
>Mike Swatek
>Claremore, OK
>http://www.swatek.com/truck.htm
Unfortunately, the De-coder from John's F-fun hundreds is only partially accurate. It is missing some of the "earlier" codes. This is why it does not show an "E" for May. 1957-'60 date codes were the same at all plants. I scanned the picture below right out of the original Ford parts and accessories catalog. I hope this helps.

https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=4575&.jpg
Mike, you are correct. Your truck was "born" on May 8th.




