I in the market for another motorhome. I had the F53 and could never got it to track straight. Yes, I did a bunch of upgrades and changes and it got better but was never right. I’m considering going...
I have a 2011 F53 and mine was all over the road. The previous owner did a lot of suspension work to it and was still all over the road, and why I think they got rid of it. What I ended up finding was the toe was out too much 5/8 of an inch. I reset it to 1/4 inch toe in and it made a world of difference in how it handles. no more darting/wandering in the lane. tracks nice and straight!