Hello group. My 2007 Cali Vintage has just clocked 40000km and the shaft has never been touched. Do l need to grease the uni joints ?. ls there any other maintenance required for the bevel box other than oil changes. I change out the gear oil every 10000km. My tacho needle won't go past 2000RPM. Has anybody else experience this. Is there any maintenance that l can do that may fix it. Thanks RJ