Stabilizer bars are mounted in motor vehicles by means of flexible bearings situated in the back part. The purpose of such bearings is to fasten the stabilizer bar and to link it with both the vehicle body and axis. The purpose of an additional bearing rigidity is to improve the stabilizer bar parameters, thus it increases the stabilizer bar performance when cornering. The article outlines methods widely used for mounting methods and strength calculations of stabilizer bar, FEM computations of the clamp and the flexible bearing of stabilizer bar L405VA. A proper construction and the selection of parameters influence the strength properties, the weight, durability and reliability as well as the selection of an appropriate production method. An improper preparation of Finite Element Method calculation models consequently leads to wrong results. It is particularly difficult to interpret the results and to find an error if we do not have a comparative calculation base (such as results of fatigue tests, analytical strength calculations). The article contains general instructions for construction of flexible mounting.