2008 Dynaquest Dynamax 27ST - Shock Upgrades? Suspension Upgrades?

[M1redskin]

Hello all, I have the above motorhome. Curious if anyone has upgraded the suspension whether front or rear on this style motorhome to help improve the bounce and perhaps roll... I know the prior owner actually changed the front axle to have a more desirable spring rate and associated ride but am looking at the back end currently. I understand from a Freightliner dealer that looked up the OEM shocks based on providing him the last 6 digits of my VIN number that this has heavy duty 15,000 lb rated shocks (each) on it already. But not sure the piston size... So whether shocks will help might be questionable. I do hear that there is an in-line meter valve on the air bag system that can help with the air bags not wobbling so much when a pot hole is hit on one side but other than that that is all I know of. Any assistance / thoughts would be appreciated.

 

[d23haynes57]

Everything suspension wise is a compromise. Reducing body roll and bounce becomes a stiffer, feel the road impacts more ride. Frist step is to make sure the shocks are even good. You have to pull them to test at least by hand. The 2 top brands of shocks are Koni and Bilstein. Extremely general the Koni will tend to give a better, softer ride and some are adjustable. The Bilstein's will be gas charged and usually offer more control.
Shocks will only control the rate of bounce or body roll. The reduce roll the usual mechanical fix it to add or upgrade the anti-roll, sometimes called sway bars.
Your coach is a bit challenged for the rear as you have that long overhang and weight behind the rear axle. This is designed to also keep weight of the front axle as there are only 2 tires up front and you have heavy chassis cab with engine up front. Those "motion control valves" help to control some of that bounce by controlling the air leaving the bag during impacts. The opposite of adding ping tanks to soften the ride. They may be worth trying in the rear.