I know this subject has been discussed before, but I wasn't able to get confirmation. What is the usual 837 alternator date for a 5C 69Z car? I gather alternators are batch-dated so not any date in the month is fair game. The car currently has a 9D3 '837. Is this date 'normative' or is it a bit early? Are there later known dates in April, like 9D24? Thanks!