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Old 07-22-2015, 01:22 PM   #16 (permalink)
nismo13807
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Join Date: Jan 2013
Location: Illinois
Posts: 340
Drives: 2013 Nismo 370z
Rep Power: 3367
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Quote:
Originally Posted by MAMotorsports View Post
Sounds like the driveshaft may be binding, if the subframe changed height that could have caused it.


The DS input could be hitting the tailshaft under load. Look for marks on either.
we checked and there was no signs of anything hitting..

Quote:
Originally Posted by YzGyz View Post
My car has been clunky since I got my hp upgrade. It is very noticeable when I leave her in fist, step on the gas then let go. It clunk hard when the drive train is loaded then quickly unloaded. I have stock nismo suspension other than urathane motor mounts and rear diff. The clunk does not feel right to me either.

YzGyz
seems we have the same problem.. what brand rear diff bushings are u using.. and did it make the sound before it was installed? update me if u find out anything please

Quote:
Originally Posted by Masterbeatty View Post
For OP I sent you a PM back. From what I can tell its possibly the tranny mounts or sub-frame bushings. But now seeing what you have the only other possibility is the tranny mounts. Other manufactures use a bushing in between the tranny and the drive shaft that when torn makes a clunk sound but ours do not have that. So by process of elimination the only to spots are the motor mounts and tranny and you have the motor mounts too. But before you spend more dough, take it into a speed shop and see if their tech has any recommendations. Because to make that clunk noise it has to be a big heavy component between something malleable and a relatively large change. A smaller component with little play would make a rattle noise, vibration.
i already had transmission mount installed before any of these and it never made the sound. yea ill probably bring it to a speed shop soon when i have time

Quote:
Originally Posted by Meulen View Post
Is it possible the lock nut on your rear coil over came a little loose?
still on stock oem suspensions and its tight

Last edited by nismo13807; 07-22-2015 at 01:25 PM.
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