I once had exactly the opposite problem - the rear bush was reasonably tight, but not tight enough, and the bush started turning in the arm on bumps.
There was a few years ago a long thread on Brickboard about this problem, and it was felt that it was partly the fault of the Volvo fitment of handed bushes for a period. The rubber on one side was harder than the other, allegedly to compensate for the natural road camber.
There followed a long conversation on the lines that the harder bush surely ought to go on the side nearer the kerb, or curb in US, whereas Volvo fitting guidance made no distinction.
In the end the modification was deleted, and I think bushes are now identical.
The trouble was accerbated by previous replacement of a bush, especially by a harder one, which expanded the hole in the arm. It was argued that it was better always to fit a replacement arm as well as a bush - or else to put a few spot welds around the metal flange of the bush to lock it in place.
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