YSSNIUTOOL Rear Axle Installer Remover Tool Kit is used to install and remove the screw nut between the rear drive shaft and the differential. Also can be used to replace the differential shaft seal.designed for installing and removing the screw nut between rear drive axle and the differential. And can also be used for differential shaft seal replacement. This Kit with three different specifications of final drive input shaft seal sleeves are suitable for more different BMW models. 27 teeth socket is compatible with BMW M2 M3 M4 M5. 34 teeth socket is compatible with BMW E70 E71 E72 E82 E84 E90 E91 E92 E93 F12 F13 F20 F25. 37 teeth socket is compatible with new BMW 7 Series. OEM Equivalent Part Number: 335040; 335050; 335060; 335080; 230020; Compatible with BMW M2 M3 M4 M5 E70 E90 E91 E92 X3 X5 X6 RWD 4WD 7 Series. The tool set is made of high-quality steel, which is corrosion-resistant and wear-resistant. It has good rigidity and durability, can withstand large forces,.Has undergone extensive testing, meet or exceed the OEM specifications. High precision and hardness ensure long term reliable service. At the same time, it is equipped with a special storage box for easier storage and movement. Package Include:1 x Drive Shaft Inner Nut Wrench, 1 x Differential Flange Nut Wrench, 1 x Output Flange Support Wrench, 1 x 27mm Final Drive Input Shaft Seal Sleeve, 1 x 34mm Final Drive Input Shaft Seal Sleeve, 1 x 37mm Final Drive Input Shaft Seal Sleeve, 1 x Drive Shaft Seal Sleeve, 2 x Screw Shread, 1x Installation Tool. 1