Steering column shaft

Can you expand a bit more? I am trying to do this same thing now as my turbo gen 3 hits. But am nervous to mess with steering components. I see the outer portion being cut back (which is what I need to do) but then I saw a picture that theres like a spring and then the plastic bearing? Do I just cut the outter tube, remove the spring and slide the plastic bearing up? I guess bushing may be the correct term. Or is it a different metal aftermarket bearing? Dam im so lost. Darn OCD