HI most planet gears can actually spin in the carrier so you can no longer put the drive shafts in.
When i rebuild a gearbox i put a piece of cardboard in oneside to hold the planet gears in place until i have got a driveshaft in then i can remove it then get the other side in.
I,m afraid its a box out and strip down job to set them up again.
Richard
rbtrans@hotmail.com
Richard
June 2008