We had a 2007 Four Winds 34H which was also the Chevy 5500 with the Duramax diesel. And we currently have a Fleetwood Discovery 40G diesel pusher. Some of these differences are going to be because the of the difference of weight and size. The Four Winds was 35ft and 19,500lbs GVWR, and the Discovery is 41ft and 32,000lbs GVWR. We weighed the Four Winds at 19,300 and the Discovery I think was 31,000lbs.
I did replace the shocks, the front sway bar, and added track bars to get the handling on the Chevy 5500 chassis to handle a lot better.
I have not done anything to the Discovery. Better shocks might be nice.
The Discovery rides much better than the Four Winds did. Much smoother and more controlled. Driving 75mph is not a big deal. That was just for a short period to test with, usually I drive at 63mph. The Fours Winds did not feel secure above 72mph.
We live in the mountains in New Mexico, so a lot of driving is here and in Colorado.
The Four Winds handled the curves much better and could consistently drive about 5mph above the curve advisory signs. If I started the turn a little early and gave it a little gas (diesel), I could get the weight transferred to the inside and it would go around a curve pretty well. In the Fleetwood, I don't dare go above the advisory speeds.
Also, the Four Winds would keep it's speed up climbs much better than the Fleetwood does.
And I still like the driving position in the Four Winds better. But overall the Fleetwood is much nicer but a lot of that is due to the extra space and better amenities. Of course it cost a lot more also.
David
2012 Fleetwood Discovery 40G
2012 Jeep Wrangler Unlimited
2019 Jeep Wrangler Unlimited