I recently removed the backhoe from my BX23 and reconnected the hoses at the back, to complete the hydraulic circuit. However, oil is weeping from the quick disconnects, where they are joined, and I assume the Oring and backing ring in the female QD need to be replaced. After spending quite a bit of time on the kubota parts site, I still cannot locate a parts number. Anyone out there who has replaced these? A part number would really be appreciated.