Rear lower arm bushes, outer UNIBALL for BMW E36 / E46, made of 2017a duraaluminium. Thanks to the use of UNIBALL bearings, they stiffen the rear suspension.Rear Axle UNIBALL Control arm bushes, lower, outer for BMW E36, E46 uniball are made with turning method from steel-strength duralumin 2017a.Thanks to the application of the bearings uniball they stiffen the rear suspension operation.