I was my findings that a tiller ratio was 1.5 to 1
and the thrower ratio was 2 to 1. for my QA42A.
The Aluminum box or housing was the same, at least for my project.
--open the box up and see if it is a bearing and or shaft problem.
Although the gears are NLA,the bearings are and a shaft can be made if NLA.
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