

The pictures are from a Hydro-Gear 618-0319. I know these are not meant to be serviced, but I'm trying anyway. This sealed transmission is from a ~2014 Cubcadet LTX1050VT.
As I split the two halves of the transmission case, I see that the axel miter gears have dots. One tooth has a single dot, and the three next to it have 2. The same is true for the opposite side, and the other two identified as "miter gear 15T"
Are these some kind of timing marks? I see that on all sides, the dots are in opposed positioning as they rotate around? Just need to know if I need to line these up perfectly in order for the transmission to work properly