I felt a "thump" when going over potholes and bumps and after searching on the forum, i realized there was a "rear bushing replacement".

I own a 2002 SC430 with 50K miles. Will the dealer replace the rear bushings free of charge?

Thanks!

 

There is actually a TSB on this exact subject. As you are right at 50k miles, check with your dealer to perhaps take care of this under warranty. You may be over the 5 year mark, but I have found some dealers to be more lenient than others.
As an example, my suv incurred a very common ailment which involved a new driveshaft and control arms. 2k cost to me. My local dealer told me the driveshaft only is covered and no way would the control arms be covered. Another dealer took care of both –no questions asked.

Some information here on those bushings
https://www.clublexus.com/forums/sho...t=rear+bushing

 

anything I need to say or show to the dealer to convince them to fix it? I just called up a dealer and they said they never heard of it?

Thanks!

 

Look at Lee's (Pearlpower) response and the link again, it lists:
TSB #0489, Ref # RS-01-001R
Re and Re Rear Sub-Frame, Replace Bushings