Model Year Description Interchange FOREST 00-02 Rear, AT (4.44 ratio), locking differential 58951 FOREST 03 Rear, AT (4.44 ratio), locking differential (XS model) 58951 FOREST 04-05 Rear, AT (4.44 ratio), locking differential, XS model 58951 FOREST 04-05 Rear, AT (4.44 ratio), locking differential, XT model (turbo) 58951 FOREST 04-08 Rear, MT, locking differential, XT model (4.44 ratio, turbo) 58951 FOREST 05 Rear, AT (4.44 ratio), locking differential, LL Bean model 58951 FOREST 06-08 Rear, AT, locking differential, XS model (4.44 ratio) 58951 FOREST 06-08 Rear, AT, locking differential, LL Bean model (4.44 ratio) 58951 IMPREZ 00-01 Rear, 2.5L, AT (4.44 ratio) 58951 LEGACY 05-09 Rear, Outback, 2.5L (4 cylinder), turbo, MT (4.44 ratio) 58951