A shifting sleeve for selectively engaging at least one transmission gear in a vehicle transmission, the at least one transmission gear having at least one opening defined therein, the shifting sleeve comprising: a shifting sleeve body having two opposite faces (300, 301); and at least one tooth for selectively engaging the at least one opening defined in the at least one transmission gear, the at least one tooth extending from one of the two faces, characterized by: the at least one tooth having a first portion, a second portion and a third portion, the first portion having a top surface extending generally parallel to the one of the two faces and being disposed at a first height relative to the one of the two faces, the second portion having a top surface extending generally parallel to the one of the two faces and being disposed at a second height relative to the one of the two faces, the first height being greater than the second height, and the third portion being disposed between the first and second portions, and having a top surface disposed at an angle relative to the one of the two faces and extending between the top surface of the first portion and the top surface of the second portion. a shifting sleeve body having two opposite faces (300, 301); and at least one tooth for selectively engaging the at least one opening defined in the at least one transmission gear, the at least one tooth extending from one of the two faces, characterized by: the at least one tooth having a first portion, a second portion and a third portion, the first portion having a top surface extending generally parallel to the one of the two faces and being disposed at a first height relative to the one of the two faces, the second portion having a top surface extending generally parallel to the one of the two faces and being disposed at a second height relative to the one of the two faces, the first height being greater than the second height, and the third portion being disposed between the first and second portions, and having a top surface disposed at an angle relative to the one of the two faces and extending between the top surface of the first portion and the top surface of the second portion. the at least one tooth having a first portion, a second portion and a third portion, the first portion having a top surface extending generally parallel to the one of the two faces and being disposed at a first height relative to the one of the two faces, the second portion having a top surface extending generally parallel to the one of the two faces and being disposed at a second height relative to the one of the two faces, the first height being greater than the second height, and the third portion being disposed between the first and second portions, and having a top surface disposed at an angle relative to the one of the two faces and extending between the top surface of the first portion and the top surface of the second portion. the first portion having a top surface extending generally parallel to the one of the two faces and being disposed at a first height relative to the one of the two faces, the second portion having a top surface extending generally parallel to the one of the two faces and being disposed at a second height relative to the one of the two faces, the first height being greater than the second height, and the third portion being disposed between the first and second portions, and having a top surface disposed at an angle relative to the one of the two faces and extending between the top surface of the first portion and the top surface of the second portion.