Dynatrac CR60-3X1104-E 2000-08 Dodge Free Spin Hub Conversion Kit With Dynalocs Manual-locking hubs reduce wear and increase fuel economy by preventing parts from rotating constantly during 2WD operation Increases reliability by eliminating troublesome axle disconnect operation. Wheel bearings and seals are dramatically cheaper to maintain, and can be easily serviced for longer life, even under severe conditions Dramatic increase in axle strength and reliability with 35-spline 1.50 shafts. Two 8 on 6.5 Dynatrac wheel hubs (customer to re-use rotor)