XB4 solid axle – slipper eliminator is wonderful for stock system battle because it allows you to reduce maximum rotation mass and eliminates slipper impact. Really in fact lets you increase acceleration additionally reduce fat of drivetrain. The XB4 solid axle – slipper eliminator set contains lightweight shaft with easy and quick modification outdrive system. Set includes 72 spur gear which will be a great match for stock program. Option 69 spur gear can be had for fine gearing modification.