1905-004 is the part number for a 2018-2021 Ctec2 crankshaft. I noticed one site (Babbits) lists that it was superseded by 1905-018. I see that's the number for the 2021 engine. Anyone know what was changed to the crank itself? Can I drop the 2021 crank into my 2018 cases? Rod bearing failed on my '18 and need to replace the crank (or have it repaired). Amazingly the top end is OK, otherwise it would be long block time.