Sumo Springs
Just installed Sumo Springs on the front of our 2015 E450 Class C Thor Chateau 31W. It seems to done what I was hoping for, although it did raise it by about an inch and a half, our coach also has Hel...
Forum Discussion
Jim, I put the Sumos on the front of our Chevy 4500 and had about the same results. They did impact camber a tad but, not enough to warrant the effort to try to adjust. However, I did experience pretty severe cupping in the center of the two front tires. I could not get a definitive answer from either the tire mfg or the alignment shops on just what caused this. I just replaced all the tires and took the Sumos out just in case? Sumo lists two part numbers for the 4500. They advised me to use the firmer version but are now saying the softer one will work just fine. Do you recall the part number you installed?
