New old stock genuine Porsche trans main shafts for 904 models.
This mainshaft is often used in place of the standard mainshaft as it allows for a removable 2nd gear set - meaning that all gear ratios can be altered to preference.
Notice the date-stamping of 1970, this is a new old stock shaft. NOT a new production.
Only one available and that is it.
*any 901 gear box*
904 302 101 00