My newley aquired 1992 N/A 399zx import seams to have vibration felt in the seat back, worse I think around 60 mph. seams a bit more than my old MR2. The engine is very smooth, no vibration or juddering from the steering wheel.

 

Is this normal for a 300zx ?

 

Thanks

 

John

theres a few things that could cause vibrations

 

1st, get your wheels balanced, as its the cheapest option

 

then the next most likely suspects are the centre prop mount & rear gearbox mount.

 

HTH

Thanks Paul, I off now to get them balanced, and have the alignment checked. But would I feel this through the steering wheel if they were out ?

 

Cheers,

 

John

Originally posted by dixonjohn

Thanks Paul, I off now to get them balanced, and have the alignment checked. But would I feel this through the steering wheel if they were out ?

 

Cheers,

 

John

 

not if just the rears are out of balance.

 

get them all done anyway :)