Cathay Pacific Asia Miles - Economy Baggage Allowance with AA booked itin

I'm flying ORD-NRT-HKG on AA and then CX on a PNR that was issued by AA. What is my checked baggage allowance? 50 pounds or 44 pounds? Does being an AA Gold (OneWorld Ruby) make any difference? Does it matter if the flight number on my itinerary is CX or AA codeshare?

50 pounds.

Your checked baggage allowance is 2 pieces of 50lbs/23kg each.
http://www.aa.com/aa/i18nForward.do?p=/travelInformation/baggage/baggageAllowance.jsp&anchorEvent=false
http://www.cathaypacific.com/cpa/en_HK/helpingyoutravel/baggageallowance

AA Gold makes no difference. The flight number makes no difference.