[New M35 Stagea Owner - Newcastle, NSW]

Check your rear diff bushing. If this has grease oozing out of it and looks cracked that means its time for a bush kit change. This gets rid of the well known shuddering on throttle from the rear end on all cars with this subframe (350Z etc). I recommend a whiteline or super pro bush kit which will tighten up things back there and feel better when launching or just general response. 

 

please check the front diff driveshaft universals while you're at it . Mine shattered completely one year and requires rebuild - PNM35 3.5L

[Strange Vibration At Speed]

On 5/15/2011 at 0:52 AM, joshuapeart said:

Yeah i have tried all tyre stuff it is something else. I am getting the car serviced this week and am going to get the tail shaft removed and balanced. I have heard that imported cars can often have a bent tail shaft due to forklifts doing damage to them at the docks. I will let you guys know what happens once I have had it all done. Fingers crossed it fixes the problem. Cheers.

Did you end up finding the issue? I have the same thing in my PNM35