Terrastar, CF/Citystar, CV, and MV/Durastar/4000 - New Generation - Rear Single Axle - Main Springs
HV/Workstar/7000 and Transtar/8000 - New Generation - Rear Single Axle - Main Springs
IC/3000 Series Bus Chassis - New Generation - Rear Single Axle - Main Springs
Terrastar; IC Bus AC and AE (2011-16)
CF500 and CF600 (Low cab forward) (2005-10)
3200 and 3300; IC CE, FC, HC, and LC bus chassis (2005-19)
- IC BE bus models use eyes both ends type rear springs
- These springs (55-1251 and 55-1271) are cataloged with the front springs for IC BE buses
4100, 4200, 4300, and 4400; MV607 and MV607H (2002-22)
7300, 7400, 7500, 7600, and 7700; HV507, HV513, HV607, and HV613; 8500 and 8600; Transtar (2002-22)
- For models with radius leaf type springs (variable rate); Rubber (RB-259) eye leaf bushing
- See remarks for springs that are identical except for the eye leaf length and bushing (RNG)
Most models use a rubber cushion in place of a helper spring.
Some models of MV/Durastar/4000, HV/Workstar/7000, and Transtar/8000 use springs with torque rods (3" or 3 1/2" wide).