tranny replacement

[1fun71]

hi everyone, I'm about ready to replace my tranny, and going back with the same turbo 350. What I was wondering is what is a good way to flush the lines of any debris from the old tranny shelling out. I thought maybe they sold some kind of aerosol stuff at the parts store or does something else work better? this is the first time I have replaced a tranny and if there is anything else I might need to know please tell me. Thanks for any and all help. Joe