Today my 04.5 400 sportsman's transmission started slipping, it makes a horrible ratcheting clicking noise like a chain skipping over sprockets. It only happens under hard load and occurs much more in low range and reverse. When there is not a heavy load it will not occur. I looked at the parts diagram and there are 2 chains in there, is there a way to tighten the tension? Is this a common problem, I have about 3000 miles on it.

 

Please don't double post in the normal thread area and in the expert area. Thanks! OPT