15FMH 2007 Driveshaft

[S/V Shenanigans]

Hi all, here's the story.

Model : 15FMH
Year: 2007 (manufactured 11/06, apparently for non-US market)
Serial Etc: 684K S 1054201 J
Location: Charleston, SC
Timeline: Engine must be repaired or replaced prior to Nov. 1

Broken driveshaft at Pinion. Located driveshaft part 6AH-45510-00-00.

1. Can anyone absolutely verify this is the correct part?
2. Can anyone tell me what the "J" signifies in the serial?
3. Can anyone share the appropriate Service Manual (local shops are back-logged)

Many thanks,
--
Gaelen
843 882 7245