Crank Shaft Bearing Kit. Are your crankshaft bearings beginning to wear out dragging down your performance? The All Balls Crank Shaft Bearing Kit includes all that you need to replace your crankshaft bearings and give your ride back the grunt it had when brand new. Precision crank bearings. Double-lip seals with PTFE contact area tolerate dry start conditions with less journal wear. Note: Kit contents will vary by fitment and are subject to change. Kit Includes: 2 engine bearing(s). 2 seal(s).