have a brand new set of axletech 4000 series military axle 2 steers dont no much about them. what i have read is there 9 ton rated factory air lockers dual u joints at wheel for 55 degrees of turning 1480 joints i believe if you take the air brakes off and use dodge 2500 calipers u can get down to around 900lbs an axle seen that on a thread at pirate 4x4 boyce equipment sells for 10 grand a set $5500 obo connersville indiana will trade txt or call at 765-265-9356