Technical steering u-joint support

Does having 2 single and 1 double u-joint in the steering box-to-column hookup require 2 support bearings? The double u-joint is connected to the box itself; not out in the middle somewhere. Don't ask why (I'm feeling kinda foolish....big screw-up! Gotta get myself out of the hole I dug)
THanks

 

A picture might help for a visual.

 

Yes. At three joints, you need a support. For every additional joint over three, you need another support.

 

I am going from what I recall your situation looking like. If you have the double on the box, I would think you could get by with a support on the shaft near the box and a second support at the opposite end of the same shaft.The other 2 joints and shaft should hook up to the back of said shaft and column from there. If you could get away with a standard joint at the box , only 1 support should work

 

That will not be stable.

 

an article from the 'net...

http://www.rodandcustommagazine.com/techarticles/custom_steering_system/

....important to have the u-joints synchronized as shown, same as you would a drive-shaft.

 

I would definitely go with two support bearings.

 

Thanks. Thinking thru these answers tells me that I need one support near the double joint, then another farther along that shaft near but before the middle joint, which will hook via shaft to a joint at the bottom of the column. Otherwise said middle joint will loop/flop whatever.
It was the double joint at the box that had me confused. Better now. Thanks again.