At the rear, the body is bolted to the shock mounts on the subframe. Due to body twisting, this connection would move, causing creaking and squeaking, so rubbers are mounted here.
The body is enclosed between two rubbers, one between the shock mount and the body mount and the other between the body mount and the locking plate that is under the floor mat against the wheel wells.
The rubber mentioned here is the lower rubber, i.e. the one mounted between the shock mount and the body.
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