john rawson

My z has been sitting for awhile (with battery disconnected) and upon starting notice that the tranny is not engaging much at all at first. Reverse almost woudnt engage but eventually did. I parked it then checked the fluids , they were negligible, but I am not aware of leakage, but is this a common problem , what am I looking at?
New seals? Rebuild? Common problem? Another funny thing is that I think that this has a 6 speed automatic tranny as opposed to a 4 speed automatic, it was told to me by a tranny dude.
Help?