Hi , old post, but if somebody are still interrested, I sent my old speedometer 0-240km/h to this company and got it back as 0-340km/h perfect calibrated and looked as new, fantastic job.
They can rebuild your tachometer to 10000rpm and if you want a very impressing speedometer 0-400km/h , they can do that too.
A friend with family in Japan did the shipping and contacted the company for me and i am 100% satisfied.
http://www.ks-sp.co.jp/yonrin_nissan/z_s30.htm
http://translate.google.com/translate?hl=no&langpair=ja%7Cen&u=http://www.ks-sp.co.jp/yonrin_nissan/z_s30.htm&prev=/translate_s%
Olav
