Got around to renewing the rear parts today.The arb bushes were ****ed

They were very hard & brittle & looked if they had been burnt in a fire.I suspect thats what the knocking was.Also done both the plastic & metal link bars.There did`nt seem to be any play in the ball joints,but they were very easy to move compared to the new ones.The good news is there is now no more knocking & with my 2 new rear tyres(£123 for 2 avon 205/55/16V`s + front tracking,rear was fine)the car no feels like new & rides very well.
The bad news

The l/h/side anti roll bar clamp was secured by 2 nuts on studs.Much cleaning with a wire brush & plenty of spray,the came undone fine.But on the r/h/side the clamp was secured by 1 stud & nut,& 1 bolt.The bolt sheered off

leaving about 8mm of thread.I ground down the surface of the arb clamp,& the surface of a 16mm nut & just managed to get the nut to tighten on the broken bolt.I think i will have to drill out the broken bolt,& thread a new bolt in.But hey ho.
Pics are old v new arb bushes.
bushes 1.jpg
bushes 2.jpg