No bracket for the float valve needle. The only thing that holds that needle in place is the float itself. Once the needle and the floats are assembled in their respective positions, flip the housing upside down and play with the float. You should see the needle going up and down. You want to ensure that the needle doesn't stick (ie that it moves easily up and down).
Edit: As for the transmission housing, there is a bracket there. That bracket attaches to the transmission housing by two bolts the port side. The bracket supports the transmission cable.
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