Grandpa Posted August 13, 2008 Share Posted August 13, 2008 Hi,If someone has a 1950 to 1960s GM parts book, please help me ID an NOS GM muffler given to me by a friend. My friend thought that the muffler is for a Buick straight eight.The body of the circular muffler is 30 inches long by 6 inches in diameter. The inlet is 2½ inches in diameter. The outlet is 2 inches in diameter. The inlet and outlet connections are centered. The muffler is a straight through design.The muffler is marked with part number 2306634. The date of manufacture is 4-65.Thanks,Grandpa Link to comment Share on other sites More sharing options...
Guest rlbleeker Posted August 13, 2008 Share Posted August 13, 2008 It cross references to a Walker 21475, which in 1965 fits Chevy school buses and GMC trucks. Link to comment Share on other sites More sharing options...
Guest imported_JPIndusi Posted August 13, 2008 Share Posted August 13, 2008 Does not look familiar for straight eights from 40's to 50's. Many were about 47 inches long. Part number doesn't match either.Joe, BCA 33493 Link to comment Share on other sites More sharing options...
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