you need to get vehicle "stablized"
i had TSB done 2 years back - new driveshaft and control arms...after fix, very stiff ride, air suspension non existent....complained, took it back.....utlimately got the right tech who figured out that the car needs to be 'stablized' ie. you cannot tighten the bolts until you let the car stablizie/ 'settle' .....whatever that means....but bottom line is that air supsension was back and so was the ride quality.....and no clunk.....don't not settle for a harsh ride... take it back and get the right tech or see another dealer..
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