In my search for a set of stock springs, I noticed that there are different part numbers for 01-03 and 04-06. Does anyone happen to know the differences?

Oh, and if anyone has a set of stock springs for sale, I'd love to buy them.

 

Not sure about the LS430. However a Maxima has two different part numbers for their struts too

 

They are for pre and post facelift. It matters more if you are not changing all the springs at once since there might be a slight difference in ride but if you're doing all 4 at once I think you will be fine with either - just make sure you buy all pre or all post facelift

 

LS430 received some upgrades for mid-cycle 2004 model year including suspension tweeks, a 6-speed automatic transmission, adaptive headlights (swivel), knee airbags, pre-collision system, new tire pressure monitor, new deck lid, bumper, taillights, and etc. which resulted in some different parts. While both are 3rd gen and look quite similar, 04-06 is a different car than 01-03....

 

I think everyone is aware that the car had a major facelift in '04.

What I'm trying to discern is what the difference in height and spring rate. The 2004+ actually has three different spring part #'s (normal, sport, and sport with rough road spec) and the 2001-2003 has three as well in 404.5mm, 422mm and 428.5mm lengths.