Electric Vehicle Forums - Question on New Front Struts

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Question on New Front Struts

Hello,
Question on new front struts. I have a 2009 Denali Hybrid with 22" GMC rims. (VIN 1GKFC13549R291596).
How do I know if my car has the Z55 with Electronic suspension with magenetic ride control or not? (GM Part number 19300066)
I called Monroe shocks Tech Support and they had me look at the "Service Parts Sticker" in my glovebox (pic attached) and since there was no Z55 and there was a Z95, then they said I have a Z95 Electronic Suspension with magentic ride control (for which they do not provide struts for).

My local Firestone shop says that only GMC sells struts for my configuration - does that sound right?
Any help you can provide (with part numbers if you have them!) would be very helpful.
Thanks!

I would go to dealer for install. You have to program it as well hence dealer.