A  solid billet ali bracket that will support the bush correctly, we advise the use of a poly bush to get the full benefit.
I have designed this part with some adjustment to allow the correct fitting on misaligned mounting hole centres. Due to the position the mounting bracket can become distorted and the mounting screws, which should be at 2.5" crs, can be out slightly. The design will allow some misalignment to be tolerated. If difficulty in fitting then check the brackets are not distorted and realign so the screw centres are  2.5"apart.
The anti-roll bar should be clean and smooth to prevent rapid wear on the bushes. Some emery tape and some rust treatment to the bar before fitting is advised.
Also check out the drop links and replace if needed. The billet ali ones with poly bushes are advised for a better location and longer service life.