Genuine GM Nut Part# 11611687 Genuine Oem:Yes, Category 2:Front Suspension, Superseded Part Number:13217120, Item Name:Axle Nut, Sme:_2360 Brand:GM, Fitment Type:Direct Replacement, Other Part Number:13217120, Part Ref# On Diagram:ONLY PART REFERENCE #2 ON THE DIAGRAM IS Manufacturer Part Number:11611687, Category 3:Brake Components, Alternate Item Name:Axle Nut, Category 1:Front Suspension