n4th4n1993 Posted March 5, 2015 Share Posted March 5, 2015 Hi, Im wanting to change my 5speed gearbox to a 6speed in my focus mk2.5 1.8 zetec s any ideas on what gearbox i can use and im gonna need to change it all over? Sent from my iPhone using Ford OC Quote Link to comment Share on other sites More sharing options...
simcor Posted March 5, 2015 Share Posted March 5, 2015 Why do you want a 6 speed box? I would be willing to bet the final drive ratio is hardly any different, more gears generally just means shorter gears. Quote Link to comment Share on other sites More sharing options...
artscot79 Posted March 5, 2015 Share Posted March 5, 2015 eh i dont think you appreciate what youre asking but the 5 speed is an ib5 gearbox the 6 speed is the mtx gearbox different box different shape different mounting the current focus isnt set up for 6 speed gear ratios a newer focus box wont work either different sensors, shafts, gear linkages probably a load of other things too including wiring.if you want to know thw difference between the 5 speed and 6 speed box other than gear ratios the revs are lower by 500 rpm at 70mph in the petrol 5 speed youde need to do at least 80mph to see any benefit from it thats it theres a reason people dont do it ....its not worth the hassle Quote Link to comment Share on other sites More sharing options...
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