GM lowering struts and shocks

[K-Bob]

Added the GM Performance lowering struts and shocks to my Eibach lowered LT sedan.
Part numbers are listed below.

Wanted to make a longer entry than the brief note I made before.

After a week driving on them I am glad I got them. The car feels just about right now. It still leans a bit too much, but the road feel/ride comfort balance is right where I think it should be for this car. I am a happy camper. I haven't driven an RS but I imagine mine probably rides better due to the 60 series touring tires and variable-rate Eibachs.

The lowering struts may also be designed to compensate for the camber caused by dropping the car.
After they were installed, my camber measurements moved closer to the middle of the in-spec range. Perhaps someone else could verify that, as it could just be a random variation with my car. But I'd like to think it's by design.

Also note that with the latest software update, our Hunter machine no longer as FE1, FE3, FE4 specs. It just has two choices for stock or sports suspension.

Interestingly, the new dampers raised the ride height somewhat:
With the GM performance struts and new tires, the car is now about .25" higher in front and .5" higher in back than it was with the Eibachs and stock LT struts and tires.

The rise is due almost completely to the improved dampers.
The tires are only .1" taller sidewall and they had been on for months and it looked the same.
But I noticed the fender gap appeared a bit higher after the struts and shocks were put on so I remeasured the ground clearance after a week. And yes it did go up .25" to .5"

Drop over stock is now 1.125" in front (at chin spoiler) and 2.0" in back (at panel edge near gas tank).
So overall, the car is riding a little more than 1.5" lower than a stock LT and 1" lower than a stock RS.

There was some discussion with the tech prior to the damper install and he thought it might go up a bit if the dampers were stiffer, but since they are also shorter I thought it would be a wash.

Anyway I'm ok with it being a little higher, since a 2" drop was a little much for the roads here. And it's riding so well now.

I am also ok with the entire suspension (Eibach Pro kit, struts, shocks) costing just $600 installed.


Dampers are service components of the GM Lowering kit, 23158161.
Struts: 95366423 and 95366424
Shocks: 23158165

 

[MaD]

Any befor/after pics?

Sent from my SM-G900T using Tapatalk

 

[K-Bob]

Have many before and after pics comparing stock springs and Eibachs, but have yet to take pics with new struts and shocks.

Here is one. My rear is now .5" higher than in this pic.

 

[K-Bob]

Before and after pic, and update

Here is a before and after pic (really an after and before pic since the before is on the bottom).

Top pic is the GM lowering struts and shocks with the Eibachs.
Bottom pic is stock LT struts and shocks with Eibachs.

They raised the car about .25" overall.

Now the update part:
I had said the difference was subtle. And as the driver it doesn't feel like night and day, although there is definitely more road feel.

But, I picked up my son from college and he commented on how rough the car was riding, "Do you have to feel every little bump in the road?"
I hadn't mentioned the change at all. He noticed it and mentioned it all on his own with no prompting from me. He has never commented on the ride quity before. So maybe it isn't quite as subtle a difference I perceive it to be.

But I still think it's just about right. Very glad I got these.