Hello all. Great forum. I've found quite a bit of useful information already. I have a question on some mufflers that I found in storage and have no idea what they went to.

One Muffler is stamped with: "GM 2850000031-7" on the first line and "Bosal 08 06" on the second line.

The other Muffler is stamped with: "GM 2850000015-7" on the first line and "Bosal 08 06" on the second line.

Any help in identifying these would be greatly appreciated!