OK, So I was driving my 04 z yesterday and I got on it in 1st pulling out of a parking lot, spund the tires got a tad sidewards then a massive vibration started and i pushed the clutch in right away. pulle dover and it was in the shifter like crazy so its the driveline. I shut it down looked around nothing seemd messed up or leaking. I started it back up seemd ok slight vibration in shifter. goes into all gears ok, motor sounds healthy still, I pull out and anything over 2500rpms the vibrations are back but get bad over 3500... SOOOOOO i will inspect today after work but was wondering if anyone had any ideas? Also i had a slightly bad right motor mount i was going to replace could that be it? or trans mount?

any good input would be nice thanks!
Alex

 

So you get this nasty vibration while the car is not moving? If so, check all of your subframe and differential bushings.

Edit: Just read the part about the engine mounts. Yes, that could be it. Check subframe/diff mounts, and engine/trans mounts.

 

Thanks for reply, yeah I'll check them all today Hopeing it's something easy.

 

So what's the verdict?

 

Well, my diff bushing was cracked ad clearly been bad for a while. And when I put the rear end up as drove threw 1st and 2nd not so much vibration or noise . So I ordered spl solid diff bushing kit. It comes tomorrow ! I'll see if that it . Also I'll replace the weaker motor mount. Even tho that's not completely broken

 

So spent a few hours yesterday and installed spl solid rear diff bushing kit! Nice stuff . Except that was not the issue they were blown but it the cause of my issue ..... Its when I reallllyyy get on it just terrible noise and vibrations! Fml , I don't think it's any mounts I have a feelin it's my shitty oem flywheel ? Only Beause it's been so noisy for ever . I figured it's messed up? But would it drive ?

 

What else? This sucks

 

I know this thread is a few months old but is there an answer to the problem? I'm having the same problem.

 

Bump!! Anyone else know what could be wrong? Need help please!!

 

When was the last time the clutch and fw was.replaced

 

Its never been replaced. Has about 115,000 on the original clutch and flywheel.

 

I'm noo mechanic, but I'd say it's time to replace the clutch and flywheel haha.
Just my $.02

 

The clutch and flywheel will be replaced sometime this week or next week, depending on when my new clutch disk comes in. I really hope this fixes it.

 

Update. I just finished installing my jwt clutch and flywheel and this totally fixed the problem.