Don't get discouraged if this doesn't work right away.
My steering got so tight it became a 2 hander. I had heard that the power steering fluid could get contaminated. So while having an oil change I had them flush it out and put in a high quality synthetic... Nothing! I then found this forum, went out to the truck and saturated the steering shaft joints with WD while turning the wheel left to right... Nothing! Saturated them again and let it sit overnight... Nothing! I then went to the quarter car wash and power washed the joints, saturated them with PB Blaster to penetrate and finally with WD to lubricate... My steering is now brand new!
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