Making due with the 4mm output shaft on a Traxxas 1/16 scale transmission .

I decided to use a 1/16 scale Traxxas transmission in a project I wanted to start and was  surprised I was having trouble finding a shaft from a different application to bring it all together. So like a lot of things the project grinded to a halt and all the part sat and collected dust . 

Then a  mere few minutes ago.

 This picture jolted my interest .

    

What is this what could it be ? Output yokes , 1/10th scale size output yokes on a Traxxas 1/16th scale transmission .

 Following the trail to

 http://www.scale4x4rc.org 

lead me to fact that Part #  1539 for the Traxxas Villian IV Has a 4mm shaft hole and mates perfectly with the Traxxas 1951 driveshafts.

So I have a set of these on their way to me and just maybe they work as I hope they will and I will be on my way to finishing my Low cost crawler that maybe closer to a monster truck in the end .