Catalog Section # Part name Qty Prod Prod date FINIS Part No. Ford Sierra MkI (1982-1986) C1.20 - Components - Rear Axle Diff Carrier 18 "o" ring 2 D 8/82 - 5/84 6093754 83BG 4370 AA Ford Sierra MkI (1982-1986) C1.20 - Components - Rear Axle Diff Carrier 4-WHEEL DRIVE 2 D 8/82 - 12/86 6093754 83BG 4370 AA