Detroit Speed Front Weight Jack Kit -The Front Weight Jack Kit is a direct replacement assembly for standard front springs. No cutting or modifying is required and it allows independent front corner height adjustment as well as front corner weight tuning. The kit uses a threaded jack bolt that is turned with a 1 2" ratchet extension from the bottom side of the lower control arm. The jack bolt articulates on an aircraft grade monoball mounted in a billet aluminum frame cup to provide