If you decide on an assembled ProRock 44 that has a new differential or locker, the price incorporates the ring-and-pinion gearset, equipment setup and set up package, yoke along with the axle will come to you assembled. You must increase the knuckles and brakes from a manufacturing unit axle. Or, https://autosparesolutions.com/product/clearlidz-for-a-jk-and-jl/