Hi guys im new here so hello everyone. I just got this old 78 f150 ranger 4x4 with a 351m. It has the 9in rearend with no pan. Has anyone taken there s apart and serviced it then put it all back and done more harm than good. Im just concerned about pulling it apart since i dont know if it has ever been apart. You know how some things are that havnt ever been disassembled. Just shoot me your opinions. Im having no troubles with it but i do want to get some fresh grease in it. Thanks everybody