Steering coupler question

I've got one for you, could you leave the splined end free, lube it up and allow a 1/4" or so in and out play like a transmission? That splined end is, lets see *checks* around 1".

Sure, as long as you're so confident that it would never slid off the steering box that you'd bet your life on it.

Notice how ALL the couplers and steering u joints out there with splined ends have a set screw? Even the aftermarket ones?