Rear lower arm bushes, lower, inner for BMW E36 / E46 BMW E36 / E46. Made of 2017a duraalumin. Thanks to UNIBALL bearings, they stiffen rear suspension.Rear Axle UNIBALL Control arm bushes, lower, inner 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.