hi,

i have purchased a supra diff,mk motorsport kit and mk motorsport heavy duty diff mount.After that i have to many vibrations.Also after 120 km/h my car vibrates so much that i cannot see from the mirror the rear cars.Also i noticed i have little noise under acceleration and to much noise under deccelaration.
Do i need to service my diff as i read in supra forums that they are prone to make noise if they are not so good.Also do i need to get rid of stiff diff mount and put again tha standard one?

Any help will be good.