8 3/4 3;91 0r a sure grip 4;10

NEED a good solid rea end pig with a set of sure grip 391 or 4 10gears preferably a 489 but will sacrifice for a 741 or 742 no junk stand up FABO PEOPLE ONLY that will back your parts when they get here clutch style preferabley no chipped teeth or worn gears. also a sure grip differential would work if you have a blown set of gears , or a sure srip diff laying around please pm me I live near Madison wisc.