I am currently on my 3rd driver side cv axle breaking. It seems to be stretched and to tight. I have a 2007 2.0 lsj ss/sc trans code mu3. She is pretty low on meghan coils. Id say 1.5in from bottom of threads on struts. New sway links, both hubs and wheel bearings, new passenger intermediate shaft Mu3 assembly, P.S. cv axle, and sway bushings. I am uncertain about the position of the trans mounts after hearing they can be rotated. I am new to the cobalt world

 

these cars dont work well when they are slammed. from factory the driveline angle is less than ideal, and with a very modest drop (1.5") your at the limits of the amount of angle the cv axles can take. various companies make whats referred to as "rotated mounts", these change the angle of the engine and transmission to lift the end of the transaxle up, helping correct the driveline angle on lowered cars.

without seeing a pic of how low the car is, my recommendation is at minimum going with rotated transmission mounts, and id say raising the car up a bit would also be a wise idea.