last of the ford tractors although used bit of fiat technology, the lat gret fords where generation 111 and powershift 30 series last of true fords. i had a good grounding as a mechanic working on fords. first the rubiks cube gearbox disaster and lack of gearbox layshaft pressure lubrication. then the h pattern conversions, then the beginning of long running porous blocks saga. the tw series pto pack mods , tw brake problems and endless service bulletins. the saying use to be at fords training school at boreham you will never get board working on a ford. dont know about reliability problems on 40 series as i moved on to work on better machines as jcb service engineer.