I have recently had the exhaust manifold of my 1976 2200TC welded and after refitting (including inlet manifold/carb assembly - a second pair of hands would have been helpful), the flexible air cleaner tube (597712) which attaches between the air filter box and the hot/cold air intake stove, decided to disintegrate! It is the original so can hardly blame it. I have tried searching the various suppliers websites but cannot see this part listed. Modern cars have plastic or rubber tubes so any advice would be gratefully received.