Driveline too short after doing a lift? If you do not correct the excessive tailshaft opening you will prematurely wear out the splines and bearings in the driveline. No need to worry... just fit one of our may tailshaft spacer kits! Every Superior tail shaft spacer is CNC machined for precise design and fittment. For fittment, just place the spacer between the pinion flange and tailshaft to give your 4x4 more spline contact. Make sure your shaft doesn't fail or fall apart by installing a Superior tailshaft spacer today.