since this is my first MB ,, I have nothing to compare to ,,, the ride is bouncy ,, but I know they are isolated. Bought a HAYNES book , says only the rears are part of that leveling system? true or not ?

If true ,, then this is the worst ride I will get with it ,,,which isnt real bad ,, and maybe replaceing the fronts will help, ( cant hurt ) ,, but what are in the fronts? stuts?