This is an axle nut made by General Motors. This item is for the steering knuckle spindle on the front axle wheel bearing on 2003-2006 GMC Topkick and Chevrolet Kodiak C6500, C7500, and C8500 trucks. This also fits 2004-2009 GMC Topkick and Chevrolet Kodiak T6500, T7500, and T8500 trucks. The inner thread diameter is 1.5" (1 1/2"). This item is no longer available from GM. Replace your old, broken, or missing part from with this brand new factory original part from General Motors.

GM Part # 15125100

Alternate GM Part # 15084371

New. Never Installed. OEM Part. Bulk Overstock

Item is number 5 in the GM diagram

NUT,FRT WHL BRG(1-1/2-12 UNF-3B, LOCKING FEATURE TAB)