Clonking noise from rear of car

[Black9]

I'm getting a clonking noise from the rear of my car, only happens when I'm going into my drive which is onto a curb and quite un-even surface. Occasionally happens when driving over speed bumps. Initially thought it was a broken spring but had a good look under the car and they are fine. Everything else seems fine too and nothing was advised on my last mot. any ideas what it could be?

[Beddie]

I'd be having a look at the rear arb bushes or rear drop links for any signs of wear mate 

[Black9]

Cars going in for upper mount bearings Tom so will get him to have a look over those two as well. Is it 2/3 bolts to remove the bushes or links?

[Black9]

RE the upper mounts. Should I have the mounts and bearings replaced or just the bearings? Have spoke to my mechanic and he says upper bearings is all it needs