CV Joint Boot Front Inner, Left 173223 Febi. This bellows kit for the drive shaft is designed for a tripod joint. It is a replacement part for the front axle, transmission side. The kit includes one Febi Bellow Kit, drive shaft (173221) and one Febi Molybdenum Grease (02582). Please ensure the products are installed by a competent individual. N.B. products are usually supplied without fitting instructions. Compatibility: BMW X2 F39 1.5 Front Inner, Left 2018 on B38A15A C.V.