PEM Racing Wide 5 Axles are perfect for 9 in. Floater and Quick Change Rear Ends. Manufactured spedifically for wide 5 hubs, axles are all 31 Spline and range from 26 1/2 in. to 36 in. making sure they have the perfect fit for your ride. The double spline axles are each induction heat treated for longer life, giving you the confidence you need to push the limit each weekend at the track.