This listing is for a 2005-2007 GM Chevrolet 5.3 5.3L WITHOUT AFM (Active Fuel Management) Lifters. VIN code “B” . VIN refers to the 8th character in the vehicles ID in lower dash reading from left to right. This cam replaces OEM cam # 12560967. Kit includes a Melling Camshaft and (16) Roller Lifters from Elgin Industries. This is for engines with 3 Bolt camshafts (not 1 Bolt). Ordering this item will require a signature confirmation upon delivery. Please ship to an address where a signature can be obtained from UPS.