1) When I keep the black spacer between the assembly and the cradle I get locked out of 5th and Reverse. I read the solution was to just remove the spacer, but it create my second problem.
2) When the spacer is removed and the assembly is bolted straight to the cradle, it does no sit flush. This results from a small plastic tab which protrudes from the pivot surround (not sure if this is the right term). Normally this tab would sit inside the space which is in the spacer, but see problem 1 why that isn't working.
Without the spacer

With the spacer (see the notch for the black tab)

Bottom of assembly showing the black tab

Assembly itself
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