Do the aluminum lower control arm brackets with bushings from IS or 2006 ls430 fit 2003 ls430 need to change mine and aluminum ones looked a lot nicer.

 

No on the IS, but I'd have to assume the 2000 through 2006 are all the same.. i don't remember reading about any suspension changes on the 3rd Gen cars..

 

The aluminum ones will fit. All the variants but differ in offset and rubber hardness. There's a separate thread on that in the IS or the SC part of the forum, but in short, the answer is yes. You need to remove the conical washer if your current LCA bushings are the ones in the steel bracket. There's a whole thread that I've linked below regarding that.


https://www.clublexus.com/forums/ls-...-repair-3.html

 

I used IS250 alloy housing which are identical and put full offest caster harder option super pro bushes in them .
Means you can get them all ready then just swap them in .
Worked awesomely with no noticeable increase in NVH .