Originally Posted by tex4judy
I know this is the Electrical Forum; but you guys are the ones I've learned from, and your opinions are respected. We're 3 years into our build and getting into the home stretch. We've weighed the van three times and we're doing OK for weight. But we'll help the springs with an air spring - either Sumo Spring or a Firestone style. Opinions?
A Sumo spring is not an air spring, it is a urethane compression bumper, so different product from the Firestones or Airlift airbags.
I much prefer the airbags for their adjustability, less progressive spring rates, and smoother ride.