Guys got a few issues on my 5 speed box. My engine has been out and put back in, got the car back today. Driving the car it engages D and R without issues but I have lost 5th gear (4th is ok) and the changes are uber jerky (way worse than when it was when it was cold). I can only assume this has happened as a result of the engine being disconnected from the box and reconnected. Could this be due to a loss of ATF or issues with the vacume lines? I am rubbish at understanding auto gearboxes. Can anyone assist in explaining these symptoms? I intend to drop it in to be sorted next week but some background info to the faults would be appreciated.