I have a 1965 MF 150 with a Perkins AD3.152 diesel. I need to replace the exhaust manifold and the 180 degree elbow that the muffler attaches to. Almost all of the websites I have looked at have the manifold (part no. 734921M1) , but not the elbow. I did find one elbow (part no. 898011M1) , however, that is supposed to fit on an MF 135, but I don't know if it will bolt up to the 734921M1 manifold. Has anyone else run into this problem?