RK Tek torsional clutch kit for engine reverse Diamond Drive- Arctic Cat. All in picture included, 40/38P helix, adjustable helix end cover, dual spring setup, reverse hooks, clutch adjuster tool (also will include 3 BDX rollers not in picture). Purchase new Feb 4 2010, kit 265$, custom dual spring setup 40$, clutch tool 25$, total 330$. Used but as new condition only 150 miles. $230 Check out RK Tek web site if needed. http://www.2strokeheads.com/clutch kit.htm. Shipping and handling 20$.