X-type 3000 awd rear end feels unstable on a right hander

So your main problem is body roll? Did you replace the swaybar bushings? Replacing my swaybar bushing on my 06 fixed my body roll problems. If you did, did you get the right size? There are 2 different sizes of bushings. $3500 for the front end??? Look at Detroit Axle next time. I did my entire suspension for $410, including hubs, shocks, struts, UCA, LCA, Links, inner, and outter tie rods.

check the drop links and anti roll bar rubbers, drop links connect from the suspension and connect to the roll bar, any play in these parts makes corning difficult. second thing is weak shocks.

Frank, you haven't said what make or model your car is.
However, have a look on the following link - it will take you to Youtube:
how to replace anti roll bar bushes Google Search

It's not a particularly difficult job. It entails loosening the drop-links/tie bars that connect to the torsion bar - the anti roll bar, then loosening the bolts holding the anti roll bar in place.

Just be aware that the anti roll bar is in effect a 'spring' and is under tension. Loosen the retaining bolts gradually, slowly.

replacing the bushes is straight forward. Once you have removed the anti roll bar just lever the old rubber bushes out with a screwdriver and push the new ones into place .. then reassemble everything.

In the most general of terms you would do the job in a couple of hours

I would check the sway bar bushing and links in front. And the traction bars in the rear... Could be front suspension parts, but you usually here a noise at cornering, clicking or popping. Sway bar is a left and right motion at higher speeds. Traction is more unstable at higher speeds.

anti-roll bar bushes, could be the problem get a big screw driver and lever the anti roll bar see if you have movement

Hi Yameekia, Chock the front wheels, loosen the wheels, jack up the rear end and place chassis stands under the vehicle and then remove wheels. You will see a torsion bar connecting the left and right suspensions. The bar is sometimes referred to as an anti roll bar or a stabilizer bar. It is attached to the body with saddle clamps with rubber bushings, replace both bushes. At either end you will see that the anti roll bar is attached to the suspension by flexible linkages. These are small rods with small ball joints at each end. When worn these same ball joints make a lot of noise, hammering out a drum roll with each bump in the road. Replace those and I believe your problems will be over. You mentioned replacing the rear shocks....what about the front? Did you know that the shocks are not there to give a comfortable ride but instead to hold the tyres in contact with the road surface. They are a safety requirement for road holding, so with that in mind, have a good look at those too! Regards John

Yes this sounds like A sway bar condition and yes you can Replace just the links and bushings. I would not replace the sway bar its self unless that is infact what broke. I hope this helps you out. i would appreciate it if you would rate me.
thank you
Aaron

check your shocks look to see if they are wet looking if not that does mean that there not bad if you push down on the car easliy then you have a shock proplem replace the shocks and also check the sway bar,bushings and sway bar end links if they are worn out they can make your car fill unstable also. hope this help good luck.

Could be ball joints or tie rods check these.

change anti roll bar bushes.Allso check coil springs are not brocken.