• 9-pin design fits retaining nut on 2WD and 4WD drive Avalanche, Cheyenne, Escalade, Sierra, and Silverado trucks with 10.5 - 11.5" ring gears
• Alloy steel construction
• 1/2" square drive
• Dimensions: OAL: 3-5/32" | Depth: 2-5/8" | ID: 2-5/8" | OD: 2-3/4"
(California Prop 65)