Parts list: № Number Qty Name Options 1 AH168456 1 Splined Coupling 2 JD7147 1 Ball Bearing 3 R42729 6 Washer 4 R57725 6 Screw Next page: ST867512 Engine Gear Case Differential, 6.8 L Tier 2 (1 of 4) ST867446 Engine Gear Case Differential, Tier 2 and Stage 5 (2 of 4) ST826858 Engine Gear Case, 6.8 L Tier 2 ST821263 Primary Countershaft U-Joint and Driveshaft ST867517 Engine Gear Case Differential, 6.8 L Tier 2 (3 of 4) ST867520 Engine Gear Case Differential, 6.8 L Tier 2 (4 of 4) ST867499 Engine Gear Case Housing, 6.8 L Tier 2 ST940432 Electro-Magnetic Header Clutch and Primary Countershaft