Bearing Kit for BT9 Spindle All the parts you will need to re-pack your trailer axle. Fits most Dexter, Al-Ko, Hayes, Quality factory built 2,000 lbs. axles. Our trailer bearing kits will contain the inner and outer bearings and races, seals, dust caps for standard spring and torsion axles, washers, tang washers, cotter pins, and lug nuts.