F815 0 Posted April 10, 2016 Hi I have a 205 gti which has had a different engine and a be3 box put into it and the speedo is incorrect, is this because of the gearbox change and how do I correct it. Many thanks Share this post Link to post Share on other sites
welshpug 1,737 Posted April 10, 2016 quite possible it was caused by the non 205 gearbox, to solve the problem fit the 205 speedo drive gears into your gearbox, you need to pull the rhs drive shaft out, remove the 3 13mm bolts from the speedo housing and pull the housing off. gear oil will dribble out so you need a clean container to catch it. swap the large cog over then refit the housing, also remove the 11mm bolt and pull the speedo drive housing out and swap the smaller gear. Share this post Link to post Share on other sites
