CPI vs Yamaha BWS wheel drive splines same?

[CPI Guy]

I am surprised so many views but not one person knows if the 2005 BWS has same final output shaft as the CPI's ?

Lets try to word it this way,
If I wanted to upgrade the final drive gears in a 2005 CPI Oliver/JV50, do I need to order a special one or does the Yamaha BWS final drive gears fit in the CPI.

Another way to confirm is - I will count the splines on my CPI motor and see if anyone can confirm if BWS is the same.