On 67 hinges Willie presses in the detent roller pin as the factory did. He also bronze bushes the detent roller. The 67 repro house rebuild kits use threaded detent roller replacement pins and just regular rollers with no bronze bushing. Some repro rollers are not even hardened and have failed quickly, or the roller threaded pins have snapped. For the price he charges for his machining, media blasting and quality, it's not worth it for me to do 67 hinges on a job.