Hello there. I am wanting to know about the gearbox known as the FS5C71A. I know it was introduced in the Roadster 2000, in about 1967. It known to have a 3 piece case with a stright stick. It had a variant, same numbers except the C was a W (FS5W71A) which had the weaker warner style brass syncros (instead of servo style steel syncros). I thought this box would be rare, but I believe it was original equipment on the 1969-1971 240Z as well? This is where I need confirmation from a "Z head" as yo