Eskimo
SILVER Star
Isnt the suspension stiff because its designed to tow and haul a lot? Tractor trailers have really flexy frames so that they flex instead of break. Just watch one as it accelerates it twists all around.
Yes, but it can be less stiff as the chassis gets stiffer.
There's just so much any manufacturer can do with a ladder frame to make it stiff. Semi's twist so much because they weigh 80,000lbs and have 2000lb-ft in a really low first gear fighting each other. The manufacturers know the twist is inevitable with that frame design, so they design around it.
Designing around it and designing it in are 2 different things.