The complete Tera60 HD Front Axle Assembly w/ Unit Bearing provides a choice of pre-installed Super 60 ring and pinon gears, ARB air locker, unit bearings, and Spicer HD Ball Joints as well as inner and outer axle shafts, knuckle assembly, brakes, and sensors. TeraFlex HD Front Axle Housings are perfect for replacing bent, broken, or damaged axles in TJ Wrangler/Unlimited vehicles including Rubicon models. Can also be used as a direct bolt-on upgrade for Jeep owners looking to beef up the stock axles� weak areas. Tera60 HD Front Axle Housings are the ultimate upgrade for TJ models requiring maximum suspension up travel and compression. Compatible with all Super 60 gear ratios for extreme duty applications requiring additional ring and pinion strength. Our heavy-duty axle housings feature smooth profile surfaces, axle tubes, all necessary mount brackets, control arm bushings, forged inner knuckles, and more!