I have the Goodyear G614 !! I would have went with the Michelin but like many people don't have the clearance between the tires . The Goodyear G614 235/85/16 end up the same size as all the junk 235/80/16 tires we all have on are trailers .
I have an FS2500 WW that seems to be bowing out around the area of the slides (for the bunks) closest to the front of trailer, are located. When the bunks are lowered, the lower bunk barely sits on the tabs located at lower end of slides. Does anyone have a similar problem and if so what is the fix.
WW had a big problem With the support riggers not being strong enuff to hold the weight of the wall on the trailers with smooth sides. If this is the problem you are having the sides have to be lifted back up to where they belong and extra riggers need to be added.
You can go online and read complaints about Cummins, Duramax and PowerStroke... It doesn't matter which you get if you try to play the numbers, you may end up with one trouble-free or you may end up with a lemon. The achilles heel for all of them is very simple... DPF/SCR/EGR.
Personally, I chose the 6.4L over the 6.7L and it was a great choice for me. Stock for stock, the playing field is pretty level.
If you think the 6.4 is the same playing field as a 6.7 you must not be towing anything heavy !! I have had both and there is a big difference from one to the other !!