My steering wheel is a little lose and I figured it out that the knuckle is warn out. Do I need to buy the whole shaft or can I get the knuckle separately? Need advice!!!!!

 

I don't understand what you mean by "knuckle" in relation to a steering shaft. I'm assuming that you may be referring to the universal joints in the intermediate shaft (the shaft between the firewall and the power steering unit). If this is the case, you would need the whole intermediate shaft - you can't buy replacement joints anymore.