muffler stuff

[sledhead]

I just removed my exhaust as the flex joint is done and as I pulled it out it looks like it is time for a new muffler as well . I looked on the donaldson exhaust site and with the size of the old muffler I found 2 that are the same size

one is # m120108 and the other is m120225

I want to make sure there is enough flow so the cat 3406e is not restricted

any help would be appreciated

thanks   dave   

[John Ostmoe]

Hey Dave,
Replaced ours with a Donaldson #m-120131, seemed to be a perfect replacement,  $294.  Did the elbow at the same time. That was a couple of years ago I guess now.

[TomC]

Use the M120225-flows more.

[Jim Eh.]

If you can't find a Donaldson, try a Nelson 86147M. Comparable to the M120225.
Fun fact ... Nelson Global bought out Donaldson Exhaust division.

[sledhead]

I ended up getting a truck muffler from a parts gobber I deal with and a new flex pipe and 90 * elbow . All in less then $ 200 . Parts should be here on thursday . Never new there was a problem until a good look at the flex pipe .

thanks for all the replies

dave