PLEASE HELP ASAP Steering shaft issue...
 

I am the original owner of a 2000 xl 4x4 4.6l I have 200 000 km on it. I am having a major steering issue. I believe its the sterring shaft, the truck feels unpredictable driving in a stright line, It wobbles like I am driving on a crazy hurricane windy day, but no wind. I have new upper and low ball joints, innner n outer tie rods, new front wheel hubs, new shocks, new breaks, new upper control arms, just got an alingment,..... The steering shaft is two piece, my sterring shaft u joints are fine, but where there two shafts connect there is a lot of play, i AM WONDERING IF THIS IS WHERE THE PROBLEM IS.... Could that play in the shaft lead to that kind of unpredictable wobble, or could it be a pittman idler arm or maybe to front sway bar link issue or the steering gearing box. this is 4x4, differnent front end then 2wd.

The pitman, idler, steering shafts, front sway bar links are oringinals, but other then play in the steering shafts the other compents are fine.