With the standard chassis, the cab can move back and forth almost unhindered. The vehicle then begins to tip over dangerously.
Marquart shock absorbers allow the vehicle to adapt to the movement, but then pull the cabin back to the 0-position for stabilisation without allowing it to swing.
“Thank you very much for your wonderful shock absorbers! As you predicted, they have completely changed the driving experience. It is now a real pleasure to drive the old Mercedes bus.”
Peter B. from Bristol 
“After almost 7,000 km (Lofoten, North Cape, Öland) I wanted to report on my experiences with the wheel-tyre-shock combination: Short version: The combination is simply awesome. From the driving feeling I don’t have a van anymore, but rather a big passenger car. … There is no swaying at all on sometimes quite bumpy roads. I was able to observe the difference very well with a Sprinter in front of me. It rocked enormously and ours didn’t at all. The straight-line stability is very good. In wind force 8 from the side, of course, you notice the large surface area of the car. But the car doesn’t lean into the wind any more but stays cleanly upright, so that I can easily make steering corrections with two fingers. …”
Michael S. from Hamburg 
Reinforced shock absorbers from Marquart considerably prevent dangerous rocking.
“…The swimming, especially on bad roads sloping outwards, is completely gone as are apparently all motorway construction sites, verges, bends, crossings and transitions have been freshly ironed out. Curves can be driven true to track, crosswinds are less noticeable; Much more stress-free and relaxed driving! Likewise, you no longer think you are in a shelter on a ship. And also very special special thanks for your personal advice and commitment. We felt very well looked after!…”
Pitta and Christof S. from Heerbrugg 
“I was supplied with several sets of shock absorbers to “try on” until the perfect
perfect set-up was found. And what can I say, our motorhome drives like a different vehicle. Some of the previous speakers wrote that the motorhomes could now be driven like cars, and I can only agree with that! It’s fun to be on the road again. We have already tested off-road and on the highway as well as on the motorway. Even with strong crosswinds and aerodynamics like a billboard, the chassis remains very stable! Thanks to Marquart. Best regards from the Eifel.”
Marco S. from Pfeffingen
“Thanks for the shock absorbers. They are installed and I have done the first test drive over different road surfaces and conditions. It was a completely different ride than before with the standard shock absorbers. Almost no longitudinal swaying and the lateral inclination is almost gone, but still comfortable. Simply great, I would have liked to have had it right from the start. I can only recommend such a conversion, it’s worth it.”
Werner S. from Wetzlar
“The shock absorbers are excellent! I sent the payment by paypal. Here is a picture of our truck “Serenity”. Thank you so much for all your help!”
Bill S. from Greely 
“You wanted feedback? The dampers are already installed, I’m really happy to transfer this bill tonight!!!! That’s quite an incredible effect. I have a new car. The suspension couldn’t be more perfect. Thank you very much for that.”
Peter D. from Elsfleth
“We drove 130 km on the country road, partly narrow and badly surfaced and had to avoid oncoming trucks with the rear wheel next to the asphalt. Everything was super relaxed. We have a new car, we hardly recognise it, the dampers iron out everything. Fantastic !!!!!!!!”
Steffen J. from Gründau