Once upon a time.....
The balance gears were introduced in the K series at some point in the 1960's and then eventually phased out somewhat in the quietline years, particularly the K321AQS. I don't know the full history.
It's better not to have them... be happy!
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Two 125's and a 124 all with 42" decks
Plow blade
#2 Cart
QA36 snowthower
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