Hi, can anybody help, I have got an 1987 hymer with a 5 cyl none turbo derv engine but had a after market turbo and intercooler fitted, it has a 4 speed automatic box and this is where my problems are, it is full vaccum system with no cables or rods, there is a number on the flange just above the sump it is 6012705101720 11002 019716 this is the only number I can find but means nothing to me, there is a 4 pin block connected where the gear selected shaft comes out and single push on connecter just above it, it is leaking fluid from the single one, does anyone know what it is called and how to remove it so I can replace it, it also will not go into first gear by the stick but will set of in first and will go in when down shifting, but when I looked at the leak I can see a large rubber thing stopping it but it has a adjuster on it so may be able to sort that bit, but can any one give me advice on the leak and does any one know were I can get a diagram of the gear box to help in the future. thanks Dave