Product_description: ['ProX Racing Parts linkage rebuild kits are available for Off Road applications. The complete rebuild kits come with all necessary parts you need to completely rebuild your linkage arms..<br> The shafts supplied are made from 52100 bearing steel and precision ground..<br> Needle bearings are made from 52100 bearing steel, ARC61-65 heat treated and have a ST13 steel shell..<br> Bushings are fits Case hardened and plated to prevent wear and corrosion..<br> All linkage kits include the lower shock bearing kits..'] (Page 1)