770B - GRADER, MOTOR 4240 FRAME Parts group 4240 FRAME 4240 FRAME . FRONT MOUNTED EQUIPMENT LINKAGE AND SUPPORT RIPPER FRAME AND LINKAGE ( - 549628) Dual Purpose Ripper/Scarifier Teeth And Shanks (Without Bottom Guards) ( - 549628) Ripper, Scarifier Frame And Linkage (549629 - )