You no longer need to modify an impact socket, or purchase expensive, custom designed hand sockets to service these parts. 
A set of seven (7) extra–thin wall deep length impact sockets for removing/ installing transmission and differential end yoke locknuts* on a wide variety of trucks.
2'' 3764D
2-1/8'' 3768D
2-1/4'' 3772D
2-3/8'' 3776D
2-1/2'' 3780D
2-5/8'' 3784D
2-3/4'' 3788D