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.

 

Is that the solid metal diff mount Mark does? if so then your going to get vibration

 

Mine is solid mounted and ive had no real problems with vibration. Sounds like it needs a service

 

it is not completely metal.It has some rubber inside like powerflex and it is full.
https://imageshack.com/i/jwu7dqj

 

Have you set your driveline angle? This still using a 2pc driveshaft? Sounds like that's the source of your vibrations. A solid diff mount will give you some N(V)H, but not real vibration unless something is out of alignment.

 

what do you mean about angle?must i change something from the center prop middle bearing?It is the standard 2 piece prop

 

I was thinking some thing to do with the prop.

I had one out of balance that started as a bit or a vibration and then as you say the mirror shook like crazy at about 35 mph.

It was confirmed to me as it was the prop that was the problem when it overtook me at 90 mph

 

prop to tight maybe?
I think some of the 3 door lads had to machine the prop adaptor,
I know mine on a sapp looks very tight ,
I ve my gearbox out atm so I m goin to get a few mm lathed of my adaptor to allow a bit more movement

 

I am having the same problem with my supra diff, one thing i dont understand is why original 2pc driveshaft can cause this after supra diff comes in?