you never answered if they checked your stabilizer bar / links and bushes.
2 bars 4 links and 4 bushes on the vehicle.

 

Help us understand what "swinging" means to you, is it side to side movement while driving straight down the road at 60 km/h with no cross wind?

Is it front to back jounce?

Have you had the wheels checked to make sure they are true/straight and or don't have a slipped belt in a tire?

Just trying to get an idea of what your experiencing with your truck.

Neal

 

OP stated: "swinging like a boat"

Appears to be broken sway bars and or links.


I do like the feel of swinging like a boat, but NOT in my Hummer!

 

4 link and 4 bushes are new
2 bars looks ok

thanks,

 

yes its side to side like a fancy yacht

 

has it been a slow progression or did it happen suddenly?

Possibly a belt slipped in one or more tires.

Neal

 

Nasser…did u find the cause of the side to side motion? Mine does the same and I just put bilsteins on and it still does it.