Visit this site
www.borgeson.com. You should be able to learn all you need to know from them. Things to know...there is a max. angle for a u-joint, 37 degrees if I remember correctly. One u-joint, no support needed, two then yes. You will most likely need one at your steering box, this counts. Welding on the steering shaft is a no-no, but have seen it many times. Pay close attention to such things as spline count at your steering box, do you need a vibration damper aka rag joint, and several others.