Hi I'm new to the site. Looks like I can get some good info here. I am converting the stock 3 speed to a 4 speed (sm420). I have a 49 3100 with the torque tube which I want to keep. I noticed that the size of the output shaft on the 3 speed is 1' and the 4 speed is 1-3/8'. Is there a tranny side u-joint yoke that adapts to the torque tube side? I would very much appriciate any info on this.
