[Andy]

I was afraid of welding over the splines due to srinkage. I took an old input shaft and cut the splines short and put it in the 6 spline coupler. I welded it to the end of the coupler. I made a sleeve to go over the stub and welded it on and then turned it concentric. The assy was put in the tube and carfully positioned and welded. The coupler end of the shaft was put in the lather and heated untill the other end was running at less thean .005 TIR.
The biggest concern I had was the torque tube being crooked. I mad a tool to check alignment. If the tube is out, the splines will have a reversing load on every turn.