Looks like that slide wasn't all mud. That's a lot of pressure hitting your suspension from the side. I'd be under there checking ALL the rear suspension components. Look for anything bent, recheck torque specs especially on new parts.
I'd also check the trunk to see if anything came loose like spare tire, jack, ext. lol. Sometimes it's the simplest thing.
I'd also check the trunk to see if anything came loose like spare tire, jack, ext. lol. Sometimes it's the simplest thing.