Universal-Superior Industries Helper Spring-Coil spring
SUPERIOR INDUSTRIES RIDE CONTROL HELPER SPRINGS, COIL SPRING TYPE, SET OF 2 -- Includes positioning cups, mounting hardware, and instructions; Calibrated pitch is designed to soften the ride while increasing load capacity from 750 to 1,250 lbs.; 14 in. long x 2.25 in. inner diameter; Fits shock absorbers with up to 1-7/8 in. outer diameter dust covers (large upper end of shock) and 1-5/8 in. outer diameter cylinder (smaller end of shock).