I came across an 833 long tail shaft tranny with no stamped VIN (I assume its a warranty piece) and an odd stamped manufacture code. The code is as follows:

PP833 10 22 1

These are the only characters/numbers stamped in the ID pad. Normally, I've found the numbers following the PP833 to be a Julian code (such as 3014), but these numbers don't seem match a Julian date. Any ideas?