Abstract: A transmission shaft of a countershaft-type manual transmission is constructed from a plurality of hollow shaft portions which are butt press welded to one another, at least two of which hollow shaft portions are provided in each instance with at least one helical toothing of a fixed wheel of a spur gear stage. The hollow shaft portions provided with a helical toothing are connected to the respective adjacent hollow shaft portion in each instance so as to be rotated by a correction angle (??) around their center axis in proportion to a deviation (?x) from their axial target position, wherein the ratio between the correction angle (??) and the axial deviation (?x) corresponds to the pitch (s) of the helical toothing (??/?x=s).