BMW Final Drive Input Shaft Socket 27 Splines, 51439 This professional 27-spline socket is engineered to hold the input shaft of the rear axle final drive securely in place while loosening or tightening the flange nut. Specifically designed for high-performance BMW M-models to ensure precise maintenance without slippage. Specifications: 27 Splines, internal diameter approx. 29mm. Drive: 1/2" Square Drive. Compatibility: BMW M1, M2, M3, M4 (F87, F80, F82, F83 models). OEM Equivalent: 2 456 244. Made in China Code: 533021 International shipment available. Please ask for price.
