TeraFlex JK heavy duty replacement axles are the perfect solution for bent, broken or damaged front axles in JK Wrangler and Rubicon vehicles. The Tera30 offers a direct bolt-in upgrade for Jeep JK owners looking to beef up the weak areas of their front axle. The replacement housing includes a heavy duty housing, tubes, axle bracketry, and forged inner knuckles. Pre-installed inner seals and upper control arm bushings make the upgrade seamless. Simply transfer your existing internal components, outer knuckle assembly, and brakes to the new housing and you are ready to go!Fits: 07-Present Jeep Wrangler JK 07-Present Jeep Wrangler Unlimited JK JK Features: JK Front 4+ Inches Lift Tera30 Replacement Axle Housing Forged heavy duty inner knuckles with greater upper and lower section strength 1/4 inch thick CNC laser cut axle brackets for extreme strength Reinforced front trackbar mount ties into spring pad for greater strength Integrated lower flexarm skid plates Pre-tapped hole on spring perch for bump stop extensions Pre-drilled holes for limit straps and lower spring retainers Heavy duty ductile iron differential cover Axles seals pre-installed Pre-installed upper control arm bushings Retains all JK ESP, ABS and speedometer sensor capability Proper pinion angle for lifted JK applications Premium UV protected triple-stage powder coat process for superior corrosion resistance Ductile cast iron housing with increased rib gussets Smooth radius bottom design to glide over rocks and obstacles Asymmetric housing design, for extra long tube side strength Bottom oil drain hole for simple fluid changes Integrated factory location upper control arm mount 3.25 x 0.25 inch axle tube increases strength to resist bending and torsion with minimal weight increase 100 Percent engineered, designed, and built in the USA 100 Percent new components 1 year unlimited mileage warranty