- Diamond Wire Spring is a leading designer and manufacturer of quality, compression springs, extension springs, die springs, torsion springs, conical springs, wire forms and various other custom springs.
- Hendrickson Truck Suspension Systems designs and manufactures the most complete line of heavy- and medium-duty truck and tractor suspensions. In fact, the division is the world's largest independent suspension supplier having produced more than two million truck suspensions and innovated many...
- Hendrickson Spring supplies nearly half of all flat leaf springs, and three-quarters of all taper-leaf springs in heavy- and medium-duty trucks and trailers in North America, as well as advance design taper leaf springs to many of the leading European truck manufacturers.