anybody knows the oem part number or aftermarket part #?

The nissan part number is 55110-85E10, Link Complete-Radius Rod. This included the 2 bushings. But it is no longer a current part, so if the dealer does not have it, they cannot order it.

Here are some places that seems to have it. (I would call and ask):
http://www.nissanpartswebstore.com/p...511085E10.html

http://www.oemautopartsandaccessorie...2dfcd91a646b7/

https://www.trademotion.com/parts/19...&siteid=214729

It will most likely be a junkyard part.

thanks, what about just replacing the bushing. at one time did Energy Suspension made any?

I'm sorry, I misread your original post. The bushing is Nissan part # 55045-D0101 and is still available. The name in the parts book is "Bush-Radius Rod". The bushing is the same for both ends.

thank you. appreciate much!