Usually just replacing the dogs will cure the problem. If the kit is not much more than the cost of the dogs, go ahead and order the kit. If you get the kit, you only have to clean the agitator instead of the agitator and all the cam parts. The parts for the washer can be ordered from the following link.
Kenmore washer parts
If you need further assistance, please reply below with more details and a model number.
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