clunk/thump sounds after spl bushings installed

Originally Posted by MAMotorsports

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.

Originally Posted by YzGyz

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

Originally Posted by Masterbeatty

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.

Originally Posted by Meulen

Is it possible the lock nut on your rear coil over came a little loose?