thanks all for your help I was given a electronic dissy off a Suzuki sierra that I modified to fit,had to machine the housing a bit,shorten the shaft,turn the drive gear upside down havent fired it up yet maybe tomorrow,the only thing I've noticed is that it now turns the opposite way to the inteded Suzuki cap markings ie:Suzuki-clockwise/Datsun-anticlockwise but I can see this being a prob after setting timing,fingers crossed!!!