OK finally today got the last of the 6 gearbox bearings. 5 bearings for the AWD box can be found in the CBC kit K-NIS5011KIT which is for a FWD bluebird. The 6th bearing which is a centre diff carrier bearing is only available from nissan japan. The Nissan Part number is 38440-79E00. It has an NTN part number on it, ET-CR-1271ST but NTN cannot source this bearing for you, and the number means nothing to nissan, it is ONLY available from nissan.