Hi Gav
I see its a very old post but had a related question that you may be able to help with.
I am using a EX Power steering box in a race car and wanting to go away from the flex disk coupling to a uni joint with a full moly shaft rathe than the factory column.
Noticed the power steer seems to run a larger tapered spline, unlike the manual with a 3/4" x 36 straight spline.
Having difficulty finding a tapered spline steering uni joint.
any thoughts on option to maybe swap out parts so it has input same as a manual box or obtain a uni joint to fit?