Using this link http://atlanticz.ca/zclub/techtips/body/doorhinge/index.htm I fixed my 73 240 door hinges. The pins and bushings were badly worn as was the door stop roller. I purchased 8 Nissan part# 80410-01G00
pin bushings and 4 80406-V5002 pins from the dealer. With the Z hinges NLA I purchased 2 8491 A202 steel press fit drill bushings from Mcmaster-Carr to use as the new rollers. You can see how bad the old bushings were worn. I could not get the doors to algin. I will be mocking up the striped doors soon and will follow up.