The gear mains assembly started by mounting the wheels and pants. I needed to sand the one side of the wheel hub about a 1/4" down with my Dremel tool for a perfect fit inside the pant. All the hardware is supplied and fit well but the pants to not have pre-drilled holes so you need to align them yourself.

The mains screwed into pre-mounted T-nuts in the fuselage. I use Pacer Z-24 thread locker on the grub screw collars and the three screws holding the mains to the fuselage. My Ultimate 40 could finally stand on its own wheels.