There is a rattle sound coming from the transmission on my 1988 SSE. It'* not very noticeable when just driving around but you can hear it quite clearly with the windows down and when stood outside the car. With the hood raised it is clearly coming from the transmission.
I'm told that this is the bearings in the transmission rattling and that the transmission will need rebuilding or replacing in the near future.
The transmission, dispite being noisy, seems to work well - although it sometimes seems reluctant to shift into overdrive and can be slow to respond to thottle inputs. The transmission also does leak slightly.
Is it definitely the bearings in the transmission? If I leave it, is it likely to deteriorate quickly or will it run fine for a long while as it is?