5,200 lb. Flexiride Adjustable Torsion Half Axles (with 6-5.5 bolt circle hub and drum with 12 electric brakes full assembled with electric backing plates, bearings, and seals mounted.) [FF-520BE-6] | $1,187.02
Lippert 5,200-lb. Spring Trailer Axle - Drop Spindle, Electric Brakes, 95/78 (6'8")
Pair Trailer Hub Drum with Electric brakes For 5200-6000 lbs axle 6 on 5.5" | eBay