These Tubular Lower Control Arms are direct replacement for factory lower control arms. Uses stock Mustang II, springs and strut rods. Arms arrive fully assembled ready to install, with lower shock bolts and nuts. Ball joints and bushings installed. All TIG welded for maximum strength and appearance. Fits all HEIDTS Mustang II IFS kits as well as most other after market Mustang II kits. PROUDLY MADE IN THE USA!