UMI Performance 93-02 GM F-Body K-member- No Motor MountsMain center tube constructed of 1. 500 x 0. 120 DOM seamless steel tubing Additional cross braces use 1. 250 x 0. 120 DOM seamless steel tubing K member Features Both TIG & MIG welded construction for superior strength Front & rear a arm mounts CNC machined and fabricated from 0. 188" thick steel Rear a arm mounts gusseted to with stand extreme side loads & pressure Dual tube center section adds increased strength over any competitors design All