Last year I noticed a drive line vibration particularly in second gear coming on boost. After car been off road for few months over Xmas and then a engine rebuild I feel I\'m noticing it more. It\'s defiantly gotten worse since the rebuild which I finnished about a month ago and done about 1000ks now. I can really feel it in all gears now but only under load. Anyone experienced this my guess is main drive shaft to the rear because it does feel like it\'s in the center of the car not to one side at all. Also anyone know the measurement for the rear gearbox oil seal it\'s leaking a little so if I pull the shaft I will want to replace it.