I read the tech article and pulled a shaft from a 90 XJ (article says 88-92 are best years) but it wont fit. There is a flat spot inside the splined end for the steering box and it's roughly 90* off, anybody else had this problem? It appears that it would otherwise install but the steering wheel would be off. Did I miss something? 

and its not coming back off easily. The wheel is still upside down, I popped the horn button off and was gonna turn it around, but after taking the nut off, the wheel wouldn't come off the splines without a puller so I left it. You can turn it back right sides up this way right?
Thanks for the help!
Seems like its pretty bolt in but a ltitle bit of hassle.
(Planning on a 2wd steering box)