Here I go again -- posting to an old thread again. However, most of the pics have disappeared due to the Photobucket debacle.
Adding another data point to the shock tower welding discussion . . .
Here is a pic of a SJ 67 Shelby GT350, with the latest sheetmetal date in the first week of February.
Ignore the UCA bolts as those are part of roller stand to move the car around.
A larger picture is available by clicking the picture above and being sent to the original Flicker picture.
In the blowup you can actual see the "1 24" date on the engine brace!