The other night I managed to loose the tail on the wagon, ended up needing to use the brakes and did a 180 on the road. When the car was perpendicular to the road I was using light braking to slow the momentum and the abs was engaged. Didn't end up hitting anything thankfully.

Now, since then the car has had a light crunching/grinding noise which I can hear coming from the drivers side(the inside of the slide) and can feel the problem coming through my left foot. Only happens when accelerating from as stop and when I go over large bumps(speed humps ect)

Ideas?

Although this is totally a guess... maybe one of your brake pistons seized up and didnt disengage? Again totally a guess!

But I can't see braking causing damage to suspension or steering but hey what do I know