Just to let people know I have a Tuner Secondary clutch for the Diamond Drive. 11.00" diameter Tuner Secondary Clutch for the Arctic Cat Diamond Drive, A simple bolt on that utilizes the old style OEM Arctic Cat helixs (1981 thru 2004) and springs providing a much wider variety of tuning options. The TUNER is made from T6061 aluminum and heat treated steel hub and towers. The movable sheave has reinforced towers for the higher HP applications when needed. It also has a belt deflection adjuster (no shims needed) and non wearing rollers. The 11.00" diameter TUNER can be used in the M-Series and the Cross Fire Snowmobiles. I do have the right to end this auction at anytime due to another type of sale. If you ae interested please let me know.