Some people eliminate the torsion bar suspension and install coilover-type springs that mount to a roll cage, allowing extreme amounts of travel with a very comfortable ride.

Install the new seals and springs or disks and O-rings.

Riding in carriages didn't really become pleasant until some clever fellow came up with a way to install springs in them.

Mazdaspeed installed better shocks, stiffer springs and larger stabilizer bars, and replaced the 16-inch wheels with 17-inch rims fitted with lower-profile tires.

If they seem roughened by deposits, sand lightly with 440-grit sandpaper; then install the rubber seats and springs (or ceramic discs and small O-rings).

Some people even get rid of the torsion bar suspension and install coilover-type springs that mount to a roll cage.

The U.S. Forest Service has installed water guzzlers and springs to increase water supply for the small number of mule deer as well as mountain quail and California quail (or Valley quail).