Here's the part number of the muffler I used last time I built one
> from scratch. It's the correct length, but slightly fatter. The
> original muffler is only 5" in diameter. All the USA sold cans I
> found were 6".
> After I bought the muffler, I bought some various bends to achieve
> what was like stock. The main can is 6" round with 1 1/2" inlet and
> outlet, just like original and is 12" length. The part is IMCO brand,
> aluminized for longer life, part # CM-43. A cross reference to Walker
> would be #17871.
> Miles