Landing gear motor question

[WaltBennett]

I was installing a 'Y' to vent our second battery (was never done by previous owner) and noticed that the landing gear motor and gear box are somewhat loose & can wiggle a bit to the point that the motor will rub slightly on the square shaft when running. Everything works OK, but is this normal? I can't see anything to tighten other than some screws that appear already tight.