Will Impala rear suspension fit on my 07 buick lacrosse?

[Allure]

I'm looking at getting new rear shocks and struts for my 2007 Buick Lacrosse, and I noticed bilstein makes struts and shocks for the same gen Impala. I was wondering if anyone knows if they would bolt up without any modification. If not, does anyone have any recommendations on something specifically for the Lacrosse?

Edited July 5 by Allure

[White93z34]

I personally cannot say, though my usual method is to go on Rockauto and look up both vehicles with a more common strut, KYB, Monroe whatever and see if the part numbers match, if those more common struts are the same I'd say theres a good chance the Bilstiens fit.

You many want to change springs as well as I'd imagine Buick springs may be made for a different ride height and for sure will be softer.

[kcac]

Another on-line resources for checking part compatibility is a recycling yard search engine site called car-part.com. The search results can be set to include "All Interchange Choices", so that the search results include vehicles with parts that fit your vehicle Or you could call a recycling yard and ask about interchange options.

[Allure]

On 7/5/2026 at 10:09 AM, White93z34 said:

I personally cannot say, though my usual method is to go on Rockauto and look up both vehicles with a more common strut, KYB, Monroe whatever and see if the part numbers match, if those more common struts are the same I'd say theres a good chance the Bilstiens fit.

You many want to change springs as well as I'd imagine Buick springs may be made for a different ride height and for sure will be softer.

Thanks! Looks like they both use the same fcs rear shock/strut assembly according to rockauto. I'll definitely keep in mind looking into springs as well.