steering shudder low speed

My 97 has had a shudder in the steering at very low speeds since I got it 2 years ago with 68k on it. It now has 118,000 on it.Anyway, the other day my mechanic calls and tells me one of his vendors ( Wynns)
has a new device that flushes all the old steering fluid out and replaces
it with clean fluid.They claim that the fluid gets contaminated over time, causing the pump to cavitate or something. BTW Olds addresssed the issue a couple of years ago with a TSB that says replace the steering hose with a longer one, about 200 bucks.Anyway, they offered to demo it at no cost. It completely eliminated the problem.

My 97 shudders when turning right only, both forward and reverse. Did you go for the flush, and how much $ ?

They didnt charge me. Im a pretty good customer of his and they used my car for a demo of it.. I think he said it would probably run 80 bucks or so with fluid normally

Now then, Who performs the flush/what's it called?

I did notice the shudder while my '98 was under warranty. The TSB fixed the problem (longer hose), but it's come back slightly - sounds like the problem is more contamination than the length of the hose...

--Robert

Bare with me guys, but What is "TSB"and "BTW"?

TSB = Technical Service Bulletin
BTW = By The Way

Thanks, learning something new everyday. Does the dealer perform this TSB still?

Yes, for around $600.

Is the flushing of the power steering fliud the only other probable solution? How much fluid does it take to refill?