hi bt if its the anti reverse pawl you mean then it only has to fit snug on both sides of sprocket on the main gear assembly.just flatten both sides of the copper with something about 2-3 mm thick in between the two copper flaps.will be a little fiddley.or else you can chase one down on fleabay, any 5-6500 pawl should fit.or get your local store to order one in for you hope this helps......peter