Muffler hangers, although made of durable rubber, will deteriorate over time. Heat, road salts, and vibration all contribute to this deterioration. Any time you replace a muffler or any section of the exhaust system, it is a good idea to replace the corresponding muffler hangers, exhaust seal rings and muffler clamps also.
Additional Fitment Specifications:
1977 -1978 230 Thru Chassis #066461
1977-1981 280E thru Chassis #031202
1977-1978 280SE thru Chassis #097390
1977-1981 300D thru Chassis #134919
1979-1980 300TD thru Chassis #004655
1978-1979 450SEL 6.9 thru Chassis #003352