I know some people are anti-stealership parts, but to be honest there are some items that have performed the best that are OEM rather than aftermarket. A good example for me would be the calipers. I had 2 different aftermarket brands and both had crappy pedal-travel and that's a safety-issue i wasnt about to let slide with my wife driving her 4Runner. The OEM ones however, well, they perform the best, great, tight breaking.
My point is that maybe with something pertaining to the steering system, you just might want to drop the extra few bucks and have an OEM part there.
Just my 2 cents.