Julian Date Codes vs Cowl Tag Build Dates

[enio45]

Tim, agree totally with your analysis on the YH dates. Likely dated wheel is Feb 24 YH's. Incidently, these feb wheels are the hardest every to find.

Ref the build date interpretation - also agree that is key to the analysis. The 04C car falls right in the middle of this understanding - putting 4-19, 4-20, or 4-21 wheels on is right at the edge of possibility.....no one can argue with the Feb wheel date, that fits with the dated parts prior to the build.

Interesting on your car - the 04A build and the ncrs production date seems to imply the 04A date on the trim tag is defined as the end of the week, not the beginning of the week.

One more point to ponder - the end of march build - march 31st is on monday - so is the cowl tag build date 03E or 04A?