Hello after two weeks. I didn¨t have any time to some check my problém with backlash in traction.. So i only try to drive in circles and i didn't listen any bad sounds - it's ok/splines on front cardan shaft-driveshaft si ok.. I only study some forums with same problems on my PC. But today a bought central bearing with rubber house of main cardan shaft-driveshaft and i will get yout complete main cardan shaft this week and i'll check it and change the central housing..