2007 Arctic Cat Four-Stroke Factory Service Manual, Page 437Get this manual
3From each side of the pivot, install washer, idler wheel, washer, and spacer
5Position the shock links in the appropriate holes of the idler arm brackets (as marked during disassembling)Place spacer between the center of the brackets; then insert the link axles into the upper shock link eyeletsSecure with cap screw, washer, and lock nutTighten securely