Front: Mack Parabolic Leaf springs: R/RS/RL/RD 1965-1990; CX Vision 2000-2005; CH 1988-2003; F model 1975-1988; U model 1975-1991; CV/Granite Model 2002-2006; RWL/RWS Models 1988-1975; FL/FS/WL/WS 1975-1985
Reference OEM# 2QK3378P6/ (62-838); 2QK3378P2/ (62-830); 2QK3300A/(62-778), R/RV/RD 5400lb Models; 2QK3378P7/ (62-840) 24mm t; 2QK3435M/ (62-968), CH&CX Vision Models; 2QK3300A/ (62-778)