Straight from the website.
"Other things we do to produce a top quality product include:
Install every sector shaft on a lathe to check for straight and true,
polish the sealing surface to a higher polish than new.
Some original housings are manufactured without bushing or bearings. This is commonly seen in some Ford steering gears and Chrysler steering gears. We rebore these units and install needle bearings.
We use only the highest quality seals. All our seals are either O.E.M. or produced by two high quality, long time suppliers of our industry.
Probably the most unique and important thing we do is custom fit every single worm and piston assembly with new precision fit steel balls. This is a process not matched by any other company in the industry. This process is very important. The machining tolerances of the original manufacturing leave a small and varying amount of play that can be corrected in no other way.
Why don't other builders do this? It is expensive and time consuming to set up. This is one of the reasons you may find another unit somewhere else for less money but the quality cannot be beat. This is why we proudly declare that we are "Not the Biggest... Just the Best!" "
Simply put, they're built to last. I'm enjoying mine so far, after putting some miles on it it's starting to loosen up and feel even better.