I'm sure he is talking about the gear sets inside the transmission. If you don't have the trans out of car, you won't get that. If it is out then will have to take shifter arm cover off to count all gear teeth. If you don't feel comfortable doing that then you need service manual to follow. The rebuild will take special tools (lock & snap ring pliers, arbors, etc). I looked at my manual and it says that "Some internal transmission parts are different from standard --with high performance engines". If you're not equipped send it to specialists, Passon, etc.
