Andover Norton now have stock of newly manufactured Commando con-rod bearing shells which offer improved wear characteristics over the original equipment items.
They still have have the high quality Lead-Bronze bearing substrate of the original shells, but offer a more advanced bearing surface than the original Lead-Indium overlay treatment. They now have a superior Lead-Tin-Copper finish overlay for a longer service life and greater wear resistance.
Sometimes original is best, but if improved technology is available it is wise to make use of it for this type of demanding application!