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| [GMCnet] Looking at coach mufflers [message #208216] |
Sun, 19 May 2013 00:13  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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I have my 78 403 Royale up on 14 inch jack stands in my shop to put on a quad bag system, rear disc, change all engine hoses, and new tires and rims. Thus a great time to do something with the exhaust. I like the idea of a rear muffler. That would reduce my under floor heat that warms up my fuel tanks. The exhaust system that is under there is in great shape except the Y pipe, and one muffler. If I stay stock. I'll put two mufflers on, and the Y pipe. I love the sound of a good V8. Just not under my GMC. What are some part numbers for some good flowing quit mufflers. If I go with the rear muffler. I'll have to pull out a real nice 2.5 tail pipe that is welded in place. That's because my two stock mufflers wouldn't be up front giving up lots of BTU's. Thus reducing the amount of exhaust volume to the rear. So that will mean that I'll have to put in a 3 inch Dia. tail pipe, due to the increase in hot gas volume. Emery has a good number for that muffler. Bob Dunahugh
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| Re: [GMCnet] Looking at coach mufflers [message #208236 is a reply to message #208216] |
Sun, 19 May 2013 02:15  |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Jim K has the mandrel bent setup for sale in either stainless or aluminized. Check out <http://www.appliedgmc.com/level.itml/icOid/488>
Larry Davick
A Mystery Machine
On May 18, 2013, at 10:13 PM, Bob Dunahugh <yenko108@hotmail.com> wrote:
> I have my 78 403 Royale up on 14 inch jack stands in my shop to put on a quad bag system, rear disc, change all engine hoses, and new tires and rims. Thus a great time to do something with the exhaust. I like the idea of a rear muffler. That would reduce my under floor heat that warms up my fuel tanks. The exhaust system that is under there is in great shape except the Y pipe, and one muffler. If I stay stock. I'll put two mufflers on, and the Y pipe. I love the sound of a good V8. Just not under my GMC. What are some part numbers for some good flowing quit mufflers. If I go with the rear muffler. I'll have to pull out a real nice 2.5 tail pipe that is welded in place. That's because my two stock mufflers wouldn't be up front giving up lots of BTU's. Thus reducing the amount of exhaust volume to the rear. So that will mean that I'll have to put in a 3 inch Dia. tail pipe, due to the increase in hot gas volume. Emery has a good number for that muffler. Bob Dunahugh
>
> _______________________________________________
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] jacking up the gmc how to keep it up while working on it? [message #208238 is a reply to message #208216] |
Sun, 19 May 2013 04:37 |
mickeysss
Messages: 1476
Registered: January 2012
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I do not want to cut all day and nail those wood piles jacks to put the gmc on. So how do i keep it in the air
being safe without a lift and cutting all day? any ideas cheap?
mckey :-)
anaheim ca. 77 palm beach
On May 18, 2013, at 10:13 PM, Bob Dunahugh wrote:
> I have my 78 403 Royale up on 14 inch jack stands in my shop to put on a quad bag system, rear disc, change all engine hoses, and new tires and rims. Thus a great time to do something with the exhaust. I like the idea of a rear muffler. That would reduce my under floor heat that warms up my fuel tanks. The exhaust system that is under there is in great shape except the Y pipe, and one muffler. If I stay stock. I'll put two mufflers on, and the Y pipe. I love the sound of a good V8. Just not under my GMC. What are some part numbers for some good flowing quit mufflers. If I go with the rear muffler. I'll have to pull out a real nice 2.5 tail pipe that is welded in place. That's because my two stock mufflers wouldn't be up front giving up lots of BTU's. Thus reducing the amount of exhaust volume to the rear. So that will mean that I'll have to put in a 3 inch Dia. tail pipe, due to the increase in hot gas volume. Emery has a good number for that muffler. Bob Dunahugh
>
> _______________________________________________
> GMCnet mailing list
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| Re: [GMCnet] jacking up the gmc how to keep it up while working on it? [message #208250 is a reply to message #208238] |
Sun, 19 May 2013 08:03 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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This is the best hydraulic jack/stand I've ever owned.
http://www.amazon.com/Powerbuilt-640912-All-In-One-3-Ton-Bottle/dp/B003ULZGFU
This is the only place I've been able to find them.
Steve
On Sun, May 19, 2013 at 2:37 AM, Mickey Space Ship Shuttle <mickeysss@me.com
> wrote:
>
> I do not want to cut all day and nail those wood piles jacks to put the
> gmc on. So how do i keep it in the air
>
> being safe without a lift and cutting all day? any ideas cheap?
>
>
> mckey :-)
>
> anaheim ca. 77 palm beach
>
>
>
>
> On May 18, 2013, at 10:13 PM, Bob Dunahugh wrote:
>
> > I have my 78 403 Royale up on 14 inch jack stands in my shop to put on
> a quad bag system, rear disc, change all engine hoses, and new tires and
> rims. Thus a great time to do something with the exhaust. I like the idea
> of a rear muffler. That would reduce my under floor heat that warms up my
> fuel tanks. The exhaust system that is under there is in great shape
> except the Y pipe, and one muffler. If I stay stock. I'll put two mufflers
> on, and the Y pipe. I love the sound of a good V8. Just not under my GMC.
> What are some part numbers for some good flowing quit mufflers. If I go
> with the rear muffler. I'll have to pull out a real nice 2.5 tail pipe
> that is welded in place. That's because my two stock mufflers wouldn't be
> up front giving up lots of BTU's. Thus reducing the amount of exhaust
> volume to the rear. So that will mean that I'll have to put in a 3 inch
> Dia. tail pipe, due to the increase in hot gas volume. Emery has a good
> number for that muffler. Bob Dunahugh
>
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Take care,
Steve
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| Re: [GMCnet] jacking up the gmc how to keep it up while working on it? [message #208275 is a reply to message #208238] |
Sun, 19 May 2013 10:03 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Yeh - when you pass through North Georgia, stop off. I have a 'chop saw' which makes short work of them. It also made short work of the treated 4x4s I have under the Palm Beach
--johnny
'76 23' transmode norris
'76 palm beach
From: Mickey Space Ship Shuttle <mickeysss@me.com>
To: gmclist@temp.gmcnet.org
Sent: Sunday, May 19, 2013 5:37 AM
Subject: Re: [GMCnet] jacking up the gmc how to keep it up while working on it?
I do not want to cut all day and nail those wood piles jacks to put the gmc on. So how do i keep it in the air
being safe without a lift and cutting all day? any ideas cheap?
mckey :-)
anaheim ca. 77 palm beach
On May 18, 2013, at 10:13 PM, Bob Dunahugh wrote:
> I have my 78 403 Royale up on 14 inch jack stands in my shop to put on a quad bag system, rear disc, change all engine hoses, and new tires and rims. Thus a great time to do something with the exhaust. I like the idea of a rear muffler. That would reduce my under floor heat that warms up my fuel tanks. The exhaust system that is under there is in great shape except the Y pipe, and one muffler. If I stay stock. I'll put two mufflers on, and the Y pipe. I love the sound of a good V8. Just not under my GMC. What are some part numbers for some good flowing quit mufflers. If I go with the rear muffler. I'll have to pull out a real nice 2.5 tail pipe that is welded in place. That's because my two stock mufflers wouldn't be up front giving up lots of BTU's. Thus reducing the amount of exhaust volume to the rear. So that will mean that I'll have to put in a 3 inch Dia. tail pipe, due to the increase in hot gas volume. Emery has a good number for that
muffler. Bob Dunahugh
>
> _______________________________________________
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] jacking up the gmc how to keep it up while working on it? [message #208280 is a reply to message #208250] |
Sun, 19 May 2013 10:16 |
GMC_LES
Messages: 569
Registered: October 2009
Location: Montreal
Karma: 0
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Senior Member |
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Steve,
I have a set of the exact same jack/stand that i purchased from Costco several years ago. Excellent tool for working on the coach when used in pairs.
There was a short discussion on them here and the fact that Costco stopped selling them due to quality issues. One of mine leaks from the lowering valve when sitting in storage. It doesn't leak when a load is on it. I tried replacing the o-ring but it still weeps so i just store it in a plastic pan.
Les Burt
Montreal
On 2013-05-19, at 9:03 AM, Steven Ferguson <botiemad11@gmail.com> wrote:
> This is the best hydraulic jack/stand I've ever owned.
> http://www.amazon.com/Powerbuilt-640912-All-In-One-3-Ton-Bottle/dp/B003ULZGFU
> This is the only place I've been able to find them.
> Steve
>
>
> On Sun, May 19, 2013 at 2:37 AM, Mickey Space Ship Shuttle <mickeysss@me.com
>> wrote:
>
>>
>> I do not want to cut all day and nail those wood piles jacks to put the
>> gmc on. So how do i keep it in the air
>>
>> being safe without a lift and cutting all day? any ideas cheap?
>>
>>
>> mckey :-)
>>
>> anaheim ca. 77 palm beach
>>
>>
>>
>>
>> On May 18, 2013, at 10:13 PM, Bob Dunahugh wrote:
>>
>>> I have my 78 403 Royale up on 14 inch jack stands in my shop to put on
>> a quad bag system, rear disc, change all engine hoses, and new tires and
>> rims. Thus a great time to do something with the exhaust. I like the idea
>> of a rear muffler. That would reduce my under floor heat that warms up my
>> fuel tanks. The exhaust system that is under there is in great shape
>> except the Y pipe, and one muffler. If I stay stock. I'll put two mufflers
>> on, and the Y pipe. I love the sound of a good V8. Just not under my GMC.
>> What are some part numbers for some good flowing quit mufflers. If I go
>> with the rear muffler. I'll have to pull out a real nice 2.5 tail pipe
>> that is welded in place. That's because my two stock mufflers wouldn't be
>> up front giving up lots of BTU's. Thus reducing the amount of exhaust
>> volume to the rear. So that will mean that I'll have to put in a 3 inch
>> Dia. tail pipe, due to the increase in hot gas volume. Emery has a good
>> number for that muffler. Bob Dunahugh
>>
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
>
> --
> Take care,
> Steve
> _______________________________________________
> GMCnet mailing list
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Les Burt
Montreal
1975 Eleganza 26ft
A work in Progress
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| Re: [GMCnet] Looking at coach mufflers [message #208288 is a reply to message #208216] |
Sun, 19 May 2013 11:16 |
George B.
Messages: 213
Registered: February 2012
Karma: 1
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Senior Member |
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Here is the single SpinTech muffler set up I changed to from the dual Flowmaster configuration:
http://www.youtube.com/watch?v=kKpKsKLFXgM
This muffler is a bit on the loud side but not bad from inside. The larger one, that was not in stock when I got mine, would be better for sound reduction.
Also I seem to remember talk that a rear mounted muffler will not last as long due to the amount on condensation that builds up there without a chance to heat up enough to get dried out during short engine run time.
George Butts
Las Vegas Nevada
73 "Custom 26' Q" & 76 23' Birchaven
71 Honda 600 Coupe & 01 Tracker Toads
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| Re: [GMCnet] Looking at coach mufflers [message #208308 is a reply to message #208296] |
Sun, 19 May 2013 14:01 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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For a short time we used a round muffler in the back from Flow masters. I
took his advise and used it.
Ended up sending them back as they were very loud.
Spintech units have worked for many, and we have been playing with them.
On Sun, May 19, 2013 at 10:48 AM, Keith V <my427v8@hotmail.com> wrote:
>
>
> your options on a royale are limited due to the dual waste tanks.
> I put on a flow master that I cut down to fit. Still sounds really good. A
> little rumble at idle amd you can hear it when you get on it, but not bad :)
>
> I tried the round one that Jim K sells and it was way too loud for me.
> I built my own exhaust with some mandrel bends and pipe from Car quest,
> pretty dang cheap. Fleet Farm has them too.
>
> pictures here;
> http://www.gmcmhphotos.com/photos/g5477-new-exhaust.html
> --
> Keith
> 69 Vette
> 29 Dodge
> 75 Royale GMC
> _______________________________________________
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>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] jacking up the gmc how to keep it up while working on it? [message #208330 is a reply to message #208280] |
Sun, 19 May 2013 19:10 |
mickeysss
Messages: 1476
Registered: January 2012
Karma: 0
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Senior Member |
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I bought two hope it works ok. They look good. thanks mickey :-) anaheim ca. 77 palm beach
On May 19, 2013, at 8:16 AM, Les Burt wrote:
> Steve,
> I have a set of the exact same jack/stand that i purchased from Costco several years ago. Excellent tool for working on the coach when used in pairs.
>
> There was a short discussion on them here and the fact that Costco stopped selling them due to quality issues. One of mine leaks from the lowering valve when sitting in storage. It doesn't leak when a load is on it. I tried replacing the o-ring but it still weeps so i just store it in a plastic pan.
>
> Les Burt
> Montreal
>
>
>
> On 2013-05-19, at 9:03 AM, Steven Ferguson <botiemad11@gmail.com> wrote:
>
>> This is the best hydraulic jack/stand I've ever owned.
>> http://www.amazon.com/Powerbuilt-640912-All-In-One-3-Ton-Bottle/dp/B003ULZGFU
>> This is the only place I've been able to find them.
>> Steve
>>
>>
>> On Sun, May 19, 2013 at 2:37 AM, Mickey Space Ship Shuttle <mickeysss@me.com
>>> wrote:
>>
>>>
>>> I do not want to cut all day and nail those wood piles jacks to put the
>>> gmc on. So how do i keep it in the air
>>>
>>> being safe without a lift and cutting all day? any ideas cheap?
>>>
>>>
>>> mckey :-)
>>>
>>> anaheim ca. 77 palm beach
>>>
>>>
>>>
>>>
>>> On May 18, 2013, at 10:13 PM, Bob Dunahugh wrote:
>>>
>>>> I have my 78 403 Royale up on 14 inch jack stands in my shop to put on
>>> a quad bag system, rear disc, change all engine hoses, and new tires and
>>> rims. Thus a great time to do something with the exhaust. I like the idea
>>> of a rear muffler. That would reduce my under floor heat that warms up my
>>> fuel tanks. The exhaust system that is under there is in great shape
>>> except the Y pipe, and one muffler. If I stay stock. I'll put two mufflers
>>> on, and the Y pipe. I love the sound of a good V8. Just not under my GMC.
>>> What are some part numbers for some good flowing quit mufflers. If I go
>>> with the rear muffler. I'll have to pull out a real nice 2.5 tail pipe
>>> that is welded in place. That's because my two stock mufflers wouldn't be
>>> up front giving up lots of BTU's. Thus reducing the amount of exhaust
>>> volume to the rear. So that will mean that I'll have to put in a 3 inch
>>> Dia. tail pipe, due to the increase in hot gas volume. Emery has a good
>>> number for that muffler. Bob Dunahugh
>>>
>>>>
>>>> _______________________________________________
>>>> GMCnet mailing list
>>>> Unsubscribe or Change List Options:
>>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>>
>>
>>
>>
>> --
>> Take care,
>> Steve
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
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| Re: [GMCnet] jacking up the gmc how to keep it up while working on it? [message #208360 is a reply to message #208250] |
Mon, 20 May 2013 01:44 |
 |
hnielsen2
Messages: 1434
Registered: February 2004
Location: Alpine CA
Karma: 0
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Senior Member |
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I have two.
Like them
Howard
Alpine CA
All is well with my Lord
On May 19, 2013, at 6:03 AM, Steven Ferguson <botiemad11@gmail.com> wrote:
> This is the best hydraulic jack/stand I've ever owned.
> http://www.amazon.com/Powerbuilt-640912-All-In-One-3-Ton-Bottle/dp/B003ULZGFU
> This is the only place I've been able to find them.
> Steve
>
>
> On Sun, May 19, 2013 at 2:37 AM, Mickey Space Ship Shuttle <mickeysss@me.com
>> wrote:
>
>>
>> I do not want to cut all day and nail those wood piles jacks to put the
>> gmc on. So how do i keep it in the air
>>
>> being safe without a lift and cutting all day? any ideas cheap?
>>
>>
>> mckey :-)
>>
>> anaheim ca. 77 palm beach
>>
>>
>>
>>
>> On May 18, 2013, at 10:13 PM, Bob Dunahugh wrote:
>>
>>> I have my 78 403 Royale up on 14 inch jack stands in my shop to put on
>> a quad bag system, rear disc, change all engine hoses, and new tires and
>> rims. Thus a great time to do something with the exhaust. I like the idea
>> of a rear muffler. That would reduce my under floor heat that warms up my
>> fuel tanks. The exhaust system that is under there is in great shape
>> except the Y pipe, and one muffler. If I stay stock. I'll put two mufflers
>> on, and the Y pipe. I love the sound of a good V8. Just not under my GMC.
>> What are some part numbers for some good flowing quit mufflers. If I go
>> with the rear muffler. I'll have to pull out a real nice 2.5 tail pipe
>> that is welded in place. That's because my two stock mufflers wouldn't be
>> up front giving up lots of BTU's. Thus reducing the amount of exhaust
>> volume to the rear. So that will mean that I'll have to put in a 3 inch
>> Dia. tail pipe, due to the increase in hot gas volume. Emery has a good
>> number for that muffler. Bob Dunahugh
>>
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
>
> --
> Take care,
> Steve
> _______________________________________________
> GMCnet mailing list
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_______________________________________________
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All is well with my Lord
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| Re: [GMCnet] jacking up the gmc how to keep it up while working on it? [message #208584 is a reply to message #208275] |
Wed, 22 May 2013 18:12 |
mickeysss
Messages: 1476
Registered: January 2012
Karma: 0
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Senior Member |
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i would love to but i do not have a chop saw. And anywhere to store them really. mickey :-) they are big.
I have a friend that has a garage i could give them to him to use on regular vans. anaheim ca. 77 palm beach.
On May 19, 2013, at 8:03 AM, Johnny Bridges wrote:
> Yeh - when you pass through North Georgia, stop off. I have a 'chop saw' which makes short work of them. It also made short work of the treated 4x4s I have under the Palm Beach
>
>
> --johnny
> '76 23' transmode norris
> '76 palm beach
>
> From: Mickey Space Ship Shuttle <mickeysss@me.com>
> To: gmclist@temp.gmcnet.org
> Sent: Sunday, May 19, 2013 5:37 AM
> Subject: Re: [GMCnet] jacking up the gmc how to keep it up while working on it?
>
>
>
> I do not want to cut all day and nail those wood piles jacks to put the gmc on. So how do i keep it in the air
>
> being safe without a lift and cutting all day? any ideas cheap?
>
>
> mckey :-)
>
> anaheim ca. 77 palm beach
>
>
>
>
> On May 18, 2013, at 10:13 PM, Bob Dunahugh wrote:
>
>> I have my 78 403 Royale up on 14 inch jack stands in my shop to put on a quad bag system, rear disc, change all engine hoses, and new tires and rims. Thus a great time to do something with the exhaust. I like the idea of a rear muffler. That would reduce my under floor heat that warms up my fuel tanks. The exhaust system that is under there is in great shape except the Y pipe, and one muffler. If I stay stock. I'll put two mufflers on, and the Y pipe. I love the sound of a good V8. Just not under my GMC. What are some part numbers for some good flowing quit mufflers. If I go with the rear muffler. I'll have to pull out a real nice 2.5 tail pipe that is welded in place. That's because my two stock mufflers wouldn't be up front giving up lots of BTU's. Thus reducing the amount of exhaust volume to the rear. So that will mean that I'll have to put in a 3 inch Dia. tail pipe, due to the increase in hot gas volume. Emery has a good number for that
> muffler. Bob Dunahugh
>
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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