1971-1973 Arctic Cat Snowmobiles Factory Service Manual, Page 162Get this manual
SUSPENSION 13Install nut on the end of the eyebolt and adjust each side evenlySpring tension should be evidentLock adjustment into position by bottoming out the eyebolt nuts on the skid frame bracket
With an eyebolt nut threaded half the distance on both eyebolts, insert the end of the eyebolt through the skid frame bracketInstall nut on the end of the eyebolt and adjust each side evenlySpring tension should be evidentLock the adjustment into position by bottoming out the eyebolt nuts on the skid frame bracketReplace the front and rear inner axles in the front and rear arms
Check the insert pivots and the bushings of the front arm; replace if damagedPosition the front arm on the inside of the skid frame