Replacing just the muffler?
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Junior User
Joined: Sep 2006
Posts: 50
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Well, that's another thing why i think the shop's gonna have it for the muffler...
The connection between the header and the cat is normally held by 2 bolts(seems like it, didn't pay much attention)
And I say normally because mine only has 1 bolt, the other side has what looks like a hose clamp across the flanges... The guy that did this was a little too creative for my liking... I'll fix that at the same time...
The connection between the header and the cat is normally held by 2 bolts(seems like it, didn't pay much attention)
And I say normally because mine only has 1 bolt, the other side has what looks like a hose clamp across the flanges... The guy that did this was a little too creative for my liking... I'll fix that at the same time...
Elder User
Joined: Jul 2006
Posts: 514
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From: Ohio
Ugh-wonder if there is a broken bolt hiding under that clamp. I've busted, removed and retapped many a hole but if there is too much of a risk of that happening with these two I'm probably not going to tackle it. Not interested in causing the need for a new exhaust manifold too, especially since I now know I have the high priced cat.
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
You stated that you live in a rust area if I am reading correctly, so I would put your odds of getting those 2 bolts out intact at very close to the same odds of me winning the lottery this week.
BTW I will let you know if I hit the lottery so you know to tackle the job or not.
BTW I will let you know if I hit the lottery so you know to tackle the job or not.
Elder User
Joined: Jul 2006
Posts: 514
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From: Ohio
Well the truck lived its first years in the snow belt before I got it so that is where the rust came from. I've spent a good part of the summer under it scraping off the surface rust and treating it, priming, painting and/or undercoating. Nothing was severe and the body itself along with the interior was in great shape. I did get the rear shocks off without any break but one of the studs broke when I did the fronts so that had to be punched out and a replacement kit put in. Between how hot the manifold gets and the rust those bolts are probably are welded in there pretty good. So if you win the lottery donations will be welcome as I'll probably still have the shop do this and pay the expense.
Elder User
Joined: Jul 2006
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From: Denver
Originally Posted by customstringer
I don't disagree with the suggestions in the above post, though I guess whether to go stainless depends upon how long you plan on keeping the truck. The muffler on mine is the original and in its first 9 years saw alot of winter weather. So the muffler took some abuse. If your muffler is original and your truck is a 94, that reinforces the point. But it is true a stainless one has considerably more durability.
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Junior User
Joined: Sep 2006
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Well, went to a muffler shop yesterday.
The muffler tech(?) told me that it was impossible to just swap the muffler since I had the original system which is not steel (cast iron?) so he would have to replace the whole existing line...
He said that replacing the whole line with steel tubing and clamps (not welded) will allow me to replace just the muffler next time...
I call BS!!! since the steel stuff is going to be as rotted/rusted as the muffler next time... I'm in Quebec here!!!
So, with that in mind, I decided that I was going to just buy a muffler and saw my old muffler out, slap the new one in with fittings and clamps...
I would need to know the original tubing's inside diameter so I can get fittings, anyone know?
Thanks
The muffler tech(?) told me that it was impossible to just swap the muffler since I had the original system which is not steel (cast iron?) so he would have to replace the whole existing line...
He said that replacing the whole line with steel tubing and clamps (not welded) will allow me to replace just the muffler next time...
I call BS!!! since the steel stuff is going to be as rotted/rusted as the muffler next time... I'm in Quebec here!!!
So, with that in mind, I decided that I was going to just buy a muffler and saw my old muffler out, slap the new one in with fittings and clamps...
I would need to know the original tubing's inside diameter so I can get fittings, anyone know?
Thanks
Laughing Gas
Joined: Jul 2002
Posts: 765
Likes: 11
From: Moneta, VA
The muffler shop is lying like a rug. I welded my muffler in place of the stock on just fine. It's steel pipe.
The original diameter of the pipe should be 2in in/out.
The original diameter of the pipe should be 2in in/out.
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Thread Starter
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Junior User
Joined: Sep 2006
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Thanks, most likely, i'll just clamp a replacement on, but I'm assuming the muffler and pipe are going to be the same size, so i'll have to buy fittings (to hook up a 2inch to another 2inch) at both ends of the muffler... Should work ok, right?
M
M
Posting Guru
Joined: Dec 2002
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From: Racine county, WI
Originally Posted by Aramis
Thanks, most likely, i'll just clamp a replacement on, but I'm assuming the muffler and pipe are going to be the same size, so i'll have to buy fittings (to hook up a 2inch to another 2inch) at both ends of the muffler... Should work ok, right?
M
M
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Junior User
Joined: Sep 2006
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Thanks for the info, i'm not equipped to weld though... So it may end up being clamps all the way.
I guess first thing is to buy the muffler, i'm just a little nervous about starting the whole thing... Went to a parts store today, looked at the couplings, there's tons, some are 2inch I.D, some are 2 1/8 I.D. Not sure what it's going to be, and unless someone here knows, it's going to require either a guess, or taking part of the old muffler once it's cut, into the store...
Any info on this? would be greatly appreciated...
I guess first thing is to buy the muffler, i'm just a little nervous about starting the whole thing... Went to a parts store today, looked at the couplings, there's tons, some are 2inch I.D, some are 2 1/8 I.D. Not sure what it's going to be, and unless someone here knows, it's going to require either a guess, or taking part of the old muffler once it's cut, into the store...
Any info on this? would be greatly appreciated...
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
Well truthfully the muffler usually slides over the pipes and then just one clamp to hold it on. So just measure the diameter of your pipe and get a muffler with that size ID and a clamp to fit it. That eliminates one extra connection per side vs putting a connector inline between the muffler and the pipe.