HST parts diagram

I just opened up the HST on a 3600. It was full of really thin, black oil with much metal flake. I cleaned and flushed the unit and could not any significant damage. Seems the metal flake came from general wear. The dirty oil caused the push rod for the bypass (manual moving) to be stuck in the open position. I will be re-installing the hind quater in the next few days. Hope this solves the problem of slipping and not being able to move either forward or back. 
Is there a HST parts list or diagram somewhere?