AT157247 Self Aligning Bushing Fits John Deere 450G, 550G, 650GOne New Aftermarket Replacement Self Aligning Bushing Fits John Deere Crawler Dozers This aftermarket replacement self aligning bushing (also described as the main center blade bushing, early old style) installs at the center pivot point of the dozer blade assembly on Fits John Deere (Fits JD) G Series crawler dozers. It is the primary center bushing in the blade C frame system, allowing the blade to pivot and self align during grading operations. One