Theses are good used surplus IFS Axles, 2 new IFS are available for $9250 ea Ratio 7.80 Weight aprox 2700lb 2:1 bevel gear reduction hub 16" of wheel travel 10 x 285mm bolt pattern Central tire inflation system
These share a lot of the same parts as the popular Meritor 611 solid axles, they are extremely heavy duty commonly used under new military vehicles.