anti roll bar

Hi , I am relatively new to this forum and need some advice. I am in the middle of repairing my 1973 240Z and need a pair of new rear brake cylinders. If you have any advice on wear to purchase. I also am looking to buy to front anti roll bar bushes. I have tried eBay but am not having much...

I have these brackets on the rear crossmember and I think they are for the anti roll bar. They seem to take a square roll bar bush. My question is this, is there a specific metal tab that closes the bush in and clamps up? There is a hole in the down facing piece which accepts a tongue of a...