I chose the 3/4in shaft Torque Converter for connection to a 6.5hp Honda Clone on a racing go-kart frame.
It fitted straight on but I did need to shim the shaft with some 20cent washers to align the belts.
The test drive was AWESOME !!!! I was so happy I purchesed the torque converter over a traditional centrifugal clutch for my "paddock basher". It rockets off, so responsive and easy to control and to drift around corners. My 12yo who hasn't driven a kart could even go flat out and drift around the track
[img]C:\Users\Charlex\Documents\Alex%20Stuff\12247084_10153767419758415_6939444906848493491_n%20(1).jpg[/img]
Highly recommended if you want a fun kart.