Help me build an exhaust

Honestly if I was going to do it, I would try to find one in a salvage yard and buy what I needed.
I want to say the parts needed from international come in around 3 grand, and that was over 10 years ago.
There were even a few 9400's that had side stacks too, but the stuff off a 9300 was the same.

 

And most 9600/9900. But used exhaust parts ain't worth removing.

 

I meant 9900 instead of 9300.
The cab brackets are what I was talking about getting, that kind of stuff is or was spendy.

 

Since your truck has the exhaust behind the sleeper there is a good chance that the cab isn’t reinforced for exhaust brackets by the doors. The cab panels won’t handle the weight of the exhaust without something on the inside. The most economical way to go would be a weed burner.

 

If you use any steel on the inside, make sure to separate it from the aluminum with a sheet of mylar and make sure there is no electrical continuity between the two. Otherwise, galvanic corrosion will eat a hole through the aluminum in short order.

 

Head board on trailer, 2 big tool boxes on trailer, lot less work and won’t hurt resale on tractor.

 

Then if you’re going to do it do it correctly using factory parts and hucking them in place. I sold my FLD when the cab started cracking around where the inside had been reinforced by the previous owner when they moved the pipes up by the door instead of the weed burner it originally had.

Either that or try and use Paccar parts and have the exhaust solid mounted to the frame with the slide rod bracket on the top clamp so the cab has suspension travel.

 

Bolting plates in place on the inside of the cab skin and then mounting the exhaust brackets won’t be enough, unless you don’t plan to keep the truck long and don’t mind if the next owner has to deal with the shortcomings.