no more scraping- exhaust outside of frame - The 1947 - Present Chevrolet & GMC Truck Message Board Network

billogna · 06-05-2005, 10:51 AM

Just thought I'd share these pics for the people with lowered trucks. I trimmed a little from the inner fenders and back of the cab, then had the exhaust shop run the exhaust outside of the framerails and tucked up as high as possible. It is now higher than the bottom of the frame and is not visible from the side except at the exit. It steps up to 2 1/4" just forward of the generic turbo mufflers. It could be made to exit through the bedside very easily, and will make tranny removal very convenient, too. I have the original ramshorns and side exhaust, so I know this is not for everyone, but thought it might give someone out there a new idea.

**tnblazerk5** · 06-05-2005, 11:00 AM

does it get the cab floor hot ?

lloyd k · 06-05-2005, 11:18 AM

i was woundering about if it would get the floor hot too

FRENCHBLUE72 · 06-05-2005, 06:28 PM

That show mine were run long ago made it very easy to work on the tranny and other part's in the area.. Don't remember the floor getting any hotter than if it was ran inside the frame rail's???

kelsfine69 · 06-05-2005, 08:16 PM

What about the droning noise in the cab???

billogna · 06-06-2005, 12:01 AM

The mufflers are in the same place as they were on the inside of the rails, just 2 inches closer to the floor. There is still quite a bit of space above the mufflers, because they are mounted to the cab substructure. The floor doesn't get hot on the inside, even after driving 40 minutes- I have a lot of insulation, though. There is no noise from the mufflers being under the outside of the cab, either. Actually, it was louder before, when my mufflers(skidplates) had holes worn in them. Now, the only noise is coming from where it is supposed to- the exhaust tips.

smokekiki · 06-06-2005, 09:06 AM

They are ran the same way on my lowered suburban.Except they exit at the rear.The floor doesn't get any hotter than it did stock.

06-05-2005, 10:51 AM	#1
billogna Registered User Join Date: Apr 2002 Location: Choctaw, OK Posts: 235	no more scraping- exhaust outside of frame Just thought I'd share these pics for the people with lowered trucks. I trimmed a little from the inner fenders and back of the cab, then had the exhaust shop run the exhaust outside of the framerails and tucked up as high as possible. It is now higher than the bottom of the frame and is not visible from the side except at the exit. It steps up to 2 1/4" just forward of the generic turbo mufflers. It could be made to exit through the bedside very easily, and will make tranny removal very convenient, too. I have the original ramshorns and side exhaust, so I know this is not for everyone, but thought it might give someone out there a new idea. Attached Images __________________ '69 Chev Cust/10 swb, 350/700R4, 5"/6" '70 Chev C10 swb, 67 front, 454/700r4, 4"/5" '73 Chev stepper, 350/3 spd '84 Chev K20 350/4 spd '91 GMC 1500 Suburban 4x4, 350/700R4

06-05-2005, 06:28 PM	#4
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,606	That show mine were run long ago made it very easy to work on the tranny and other part's in the area.. Don't remember the floor getting any hotter than if it was ran inside the frame rail's??? __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

06-06-2005, 09:06 AM	#7
smokekiki Mike Join Date: Jan 2003 Location: west chester pa Posts: 2,473	They are ran the same way on my lowered suburban.Except they exit at the rear.The floor doesn't get any hotter than it did stock. __________________ 70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires

06-05-2005, 11:00 AM	#2
tnblazerk5 User #12137 Join Date: Apr 2004 Location: kingsport,upper east tenn Posts: 11,598	does it get the cab floor hot ?

06-05-2005, 11:18 AM	#3
lloyd k Registered User Join Date: Feb 2004 Location: columbus,ohio Posts: 201	i was woundering about if it would get the floor hot too

06-05-2005, 08:16 PM	#5
kelsfine69 18 Till I Die Join Date: Mar 2005 Location: Alberta, Canada Posts: 1,522	What about the droning noise in the cab???

06-06-2005, 12:01 AM	#6
billogna Registered User Join Date: Apr 2002 Location: Choctaw, OK Posts: 235	The mufflers are in the same place as they were on the inside of the rails, just 2 inches closer to the floor. There is still quite a bit of space above the mufflers, because they are mounted to the cab substructure. The floor doesn't get hot on the inside, even after driving 40 minutes- I have a lot of insulation, though. There is no noise from the mufflers being under the outside of the cab, either. Actually, it was louder before, when my mufflers(skidplates) had holes worn in them. Now, the only noise is coming from where it is supposed to- the exhaust tips.



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