TRIANGLE SUSPENSION TRA2728 Trailer Spring Transpro, lvs-3, SE:21-1/4; LE:22-7/16; S-End: HK-1; L-End: HK1; Grading: 3/788

Since 1919, Triangle Suspension Systems Co.® has set the gold standard for steel leaf springs. With generations of spring shop customers going back for more than 7 decades, Triangle Suspension has made a name for itself for its use of high-quality materials that are backed by ISO-compliant manufacturing processes. Their catalog covers a wide range of applications, including leaf spring assemblies, air beams, and helper springs for light, medium, and heavy duty vehicles. They also offer spring repair components and custom-engineered spring to fill almost any niche. All their products are manufactured in-house in their DuBois, PA, manufacturing facility and distributed across the United States and beyond.