Features and Benefits: 3/4" square drive. ; OAL: 2-7/8". Inside Depth: 2-3/32". ; I.D.: 1-1/8". O.D.: 2-5/8". ; Applications: Chevy & GMC 5,200 & 7,200 lb axles (1946+); Lock Nut Socket - GM. 3/4" square drive. OAL: 2-7/8". Inside Depth: 2-3/32". I.D.: 1-1/8". O.D.: 2-5/8". Applications: Chevy & GMC 5,200 & 7,200 lb axles (1946+)