Pro Series front lowers use a mix of 3/4″ heim joints and uniball pick up points with a ultimate static load rating of 27,019 lbs. All bearing mounting points eliminate bushing compliance in suspension movement, while offering infinite range of adjustment. Thick wall 1.5″ DOM construction and stainless steel mis-alignment spacers. An additional outer eccentric adjuster aids in additional adjustment range. 2lbs lighter than NB stamped steel arms while offering superior strength, stiffness, and adjustment.