on the ball joint, where there is usually a stamp, the emblem of the Lemforder company, this sign is not there. on the lever itself there is this sign, but on the ball joint attached to this lever there is no this sign. according to an internet search, usually on the lower cup of the ball joint there is also usually an emblem, the Lemforder sign. the ball joints are attached with bolts, removable. yes. maybe somewhere someone puts non-Lemforder ball joints on your suspension arms? ford mondeo 4