http://energysuspension.com/index.html This company is a good resource for controlling motions that go bump in the night.
Some of the OEM are available at
http://southlandit.com/about-old-internationals/ George, the owner is one of the really good guys and deserves our support. He and his company are regular and very generous supporters of anything vintage IHC. Don't forget to buy CANADIAN while our dollar is very low when measured against the American dollar. Right now, an American buyer can expect to get up to
45% advantage with the USD.