The upper arm double shear kit strengthens the coil bucket to the frame and reduces stress on the upper arm bolts. The double shear kit is cad designed and laser cut out of 3/16″ thick steel. The kit works with Dirt King heim upper arms and bushing upper arms. This product is not intended to be used with factory upper arms. Kit Includes:- Four (4) double shear tabs- Installation instructions 3/16″ steel construction Works with DK heim upper arms and bushing upper arms Strengthens the coil bucket to the frame Reduces stress on upper arm bolts Notes:** Please allow up to 3 weeks for production and shipping*** Not intended to be used with factory upper arms Fits:Toyota Tacoma Gen 2 (2005-2015)Toyota Tacoma Gen 3 (2016-2023)