I've found that 6 point Snap-On sockets will work on many nuts that 6 point Craftsman sockets have rounded off. Joel in Keller, TX (DFW area) '66 Corsa w/air '63 Greenbrier 4spd '63 Greenbrier 8dr 4spd "Bob" '63 900 Convertible 4spd '67 Monza 4spd Posi '62 Monza Wagon PG '64 Greenbrier 4-speed 5 Rampsides 11 others