Rear Rock Assault Axle Housing Kit (IFS Width) 0 Rear Rock Assault Axle Housing Kit (IFS Width) The axle tubes are now made from 5/16" thick, high strength DOM tubing and engage 5/8" farther into the center section. On top of that, there is a... MSRP: Was: Now: $1,199.99 - $1,299.99 Quick view Add Wish List choose option