Larry N. said:I don't know about the Tiffin, but on the Newmar I think you'd have to upgrade to a Dutch Star or maybe a New Aire. The Ventana is an air suspension and, to the best of my knowledge, doesn't have the "easy" handling add-ons available like many of the gassers do. I'd think a multistage suspension (likely factory only) might be the only thing (my Beaver had two stage -- nice) that might work.
Of course now that I've said that, someone will correct me... : 8)
Larry N. said:It does very well, Don. The so-called "Comfort Steer" actually does help with crosswind gusts and trucks passing by (I usually leave mine set about the middle, but increase it a little in gusty winds). Mostly I get little twitches, and I find at the end of a day's drive I'm not as tired as I was after a similar day in the Beaver. Compared to the Bounder I used to have-- well, there IS no comparison. Stuff that made me drop my speed (on the Interstate) to 30 mph or less is no big deal in the Ventana (nor the Beaver, for that matter, but it had a tag axle to help).
Palo Duro -- ah, yes, a wonderful time.
Gary RV_Wizard said:I would not expect that either one needs any chassis upgrades. Both have a mid-grade diesel pusher chassis and those are usually pretty well designed to begin with.
My main concern would be that some models & floor plans may be a bit overgrown for the chassis they ride on. That is usually indicated by a relatively low carrying capacity (OCCC). Sometimes the coach builder gets carried away adding features to their entry DP models and overload the chassis that was originally chosen for it. Sometimes the base specs are fine but options add a lot of weight, so brochure numbers may not be very accurate.