Just had the IS suspension and Kodiak disk brakes put on. The ride improvement is noticeable on rough roads and with the disk brakes the old girl finally feels like she might stop BEFORE the pile up. Trailer finally tows straight - previously had a slight pull to the right and I couldn't see down the passenger side of the trailer without a bit of a swing. Tires that came off looked pretty even with the exception of one that wore quicker on the outside (Westlake originals @ 13kish).
MorRyde is a great company to work with and they know their stuff. Everything is straightforward and the install is solid with good welds, etc. one thing to note - you have to request Timken bearings if you want them or they use the Dexter or Kodiak supplied bearings (Chinese) as OEM.
Price me is steep but I feel like I got what I paid for and it was worth it as we will keep this 5er for a while.