I’m still looking for help. Is the Bilstein 4600 the way to go on improving the ride comfort of a 2009 Tahoe PPV, without changing the ride height? According to their website, it wont work on a “police edition”. do I reuse my old coils with the 4600?
I see the Monroe 39106 is designed for the factory fit.
Here is the best I can tell you... I have an LTZ and not a PPV but have done a fair bit of research because I was thinking of going the other direction.
The strut body on the PPV are slightly bigger in diameter and therefore take a slightly bigger diameter lower spring perch... that is to say the hole in the spring perch has a slightly bigger hole to fit around the 39106 strut.
As long as the new strut you are using comes with its own spring perch you should be fine. If it doesn't then you would need to source the lower perch elsewhere as I believe your factory one would be a little too big around.
I lowered my Burb with the Belltech spindles and struts and am looking to firm up the front suspension some... which is why I was looking into PPV struts.
I already gifted my original lower perches to the OP so I can't help there.
Also from what I understand the front end of the PPV is not actually lowered at all.... only the rear is lowered slightly (about 2 inches).
The lowered look comes from the fact that they run the 17" wheels. There are a few guys on here running the factory 20" wheels on PPVs and it looks just like a stock Tahoe in the front as far as height is concerned.
With all that being said you should be fine to swap an entire strut assembly out of a non-PPV into your truck without it "lifting it up"... IMO