[AndyB]

If going trying to find a longer shaft for the toughbox, you must purchase the 2" extended shaft for the AndyMark single speed gearbox and then on input end, use a lathe to take the diameter down from 1/2" to 3/8". You may also need to consider a different bolt or drilling out a larger hole on the output side of the shaft.

The shaft is not hardened so your lathe should be able to do the job as well as any other steel part. Keep in mind, AndyMark does not sell a longer shaft, or endorse this style of shaft. Use this at your own risk and please do not send out emails to AndyMark complaining if you are having difficulty.

Hope this works.