Originally Posted by MEASURE TWICE
It looks like a torque converter you have. When you mention two speed is that you have a way while moving to switch to use different size pulleys engaging to have two different ratios. It is my understanding that the torque converter automatically switches the ratio. I guess an overall ratio could be changed and the torque converter would operate with difference low and high end speeds when different size pulleys were enacted.
Yes the overall ratios are changed this is geared for 10mph in 1st and 20 in high. Yes it can be shifted on the move. We have to make the shifter assembly yet