NON-ACT "A SERIES" HELIX
Pre ‘05 Arctic Cat models with non-ACT secondary clutch. Dalton helixes are relieved for more overdrive, they are totally machined inside and out for perfect roundness. They have taller points so they work well in the oversized driven clutch used by many drag racers. All Dalton helixes for this clutch are designated by “A” for the part number, e.g. A 55 / 52.