Ronin is now offering adjustable cast hangers. How do they do it? Well they take 3mm off of each side of the hanger ( as seen in the video) and include 3mm spacers so you hanger setup at  174mm or 180mm.

The best thing about this new deal is that they also offer a retro-fitting  service for current truck owner so no need to buy a new one.

Modified trucks available on their web store or you can contact them at ronintrucks.com to have your current setup modified.