Exhaust Ideas for a dropped 2WD Blazer - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cparman · 10-01-2011, 08:17 PM

how bout some pics of your exhaust?

71HUGGER396 · 10-02-2011, 09:06 AM

I'll be waching this one, I need to do exhaust soon also.

4oldcars · 10-02-2011, 09:19 AM

What did you do? I just finished mine. I'm curious if we're on the same page.

cparman · 10-02-2011, 12:54 PM

Ain't tellin!! Looks like my dog did it. !! I have pipes all the way out the back, but where they go over the axle is too close, and will rattle when going over a pretty good bump. Hate it! Got a couple of ideas, but usually my ideas get expensive, and THEN, BIG BOSS has to get involved. - - - - well you know.

If I get it up in the air later I will shoot a picture or two.

hotrodhomi · 10-02-2011, 01:08 PM

My blazers exhaust exits out the back under the rear bumper, but I wouldn't recommend that if you run a top. When I had my top on, it created negative pressure in the rear and sucked the exhaust into the cab. Sure, you could do a good job of sealing the rear to prevent this, but they are hard to get sealed. I never have the top on mine, so I can't smell any exhaust when driving. My blazer is bagged and the exhaust runs over the rear axle. The frame is notched to get low enough for the diff to hit the floor and there is still room for the exhaust.

bigblock68 · 10-02-2011, 01:26 PM

i didnt have enough clearance to go over the axle so i went out the side

hotrodhomi · 10-02-2011, 02:11 PM

Quote:

Originally Posted by bigblock68

i didnt have enough clearance to go over the axle so i went out the side

Does that rattle on the body? It looks close, but maybe it's just the angle of the pic.

4oldcars · 10-02-2011, 02:18 PM

I took the easy route like bigblock68 and brought them out in front of the tires. But - - I'm not a pro - - mines not as nice as his.

**SOON2BLAZE** · 10-02-2011, 04:54 PM

Mines out the side infront of the rear tires as well. Not much room under there for mufflers. so you need to think about where the exhaust pipe will join to the muffler (center or off set) and same with the exit of the muffler. I'm running a flow master 50 for sound control. They are cooking my A** as they are right behind the front seat. The Fat Mat gets hot. Gonna wrap em in kevlar heat shields in a week or two. Bullet style mufflers would have been a better choice for space, but louder. Running the pipe above an aftermarket trans crossmember and through the trailing arm crossmember will make life much easier for you.

Rochlow · 10-02-2011, 05:22 PM

I ran my straight back with glasspacks and dumped before the rear axle..

10-01-2011, 08:17 PM	#1
cparman sharp as a marble Join Date: Jan 2007 Location: atlantic beach,florida Posts: 1,082	Exhaust Ideas for a dropped 2WD Blazer how bout some pics of your exhaust?

10-02-2011, 09:06 AM	#2
71HUGGER396 Confirmed Truckaholic Join Date: Oct 2000 Location: Sarver,PA 16055 Posts: 732	Re: Exhaust Ideas for a dropped 2WD Blazer I'll be waching this one, I need to do exhaust soon also. __________________ 1968 50th STEP SIDE SHORTY, 350/350, a/c, ps, p,b Daily Driver, 1970 Cst short fleet, all black, 350/350, 1970 2wd Blazer, 2wd, 6 cyl. 3 spd, original, now a 454, 350turbo, 3.73 posi, on the road 1971 2wd fleet shorty, 454, 700r4, 3.73 posi, SOLD to 67OLDSTYLE72 "My rig's a little old but that don't mean she's slow" - SAWYER BROWN's Six Days On The Road SEMPER FI "I use to be a lean mean fighting machine, but now I'm a huffin, puffin, over stuffin love muffin"

10-02-2011, 09:19 AM	#3
4oldcars Registered User Join Date: Jun 2004 Location: On The Beach, S C Posts: 613	Re: Exhaust Ideas for a dropped 2WD Blazer What did you do? I just finished mine. I'm curious if we're on the same page. __________________ 4oldcars Driving: 1971 Jimmy w/68 Chev front clip, 1953 Bel Air 2 dr hdtp, 1996 Roadmaster wagon, 2000 Eldorado The ones I let go: 1931 2 dr sedan, 1935 pick up, 1938 2 dr sedan, 1962 SS 454, 1963 409 wagon, 1970 short bed, 1972 short bed, 1972 sub, 1976 short bed, 1986 long bed, 03 short bed

10-02-2011, 12:54 PM	#4
cparman sharp as a marble Join Date: Jan 2007 Location: atlantic beach,florida Posts: 1,082	Re: Exhaust Ideas for a dropped 2WD Blazer Ain't tellin!! Looks like my dog did it. !! I have pipes all the way out the back, but where they go over the axle is too close, and will rattle when going over a pretty good bump. Hate it! Got a couple of ideas, but usually my ideas get expensive, and THEN, BIG BOSS has to get involved. - - - - well you know. If I get it up in the air later I will shoot a picture or two.

10-02-2011, 01:08 PM	#5
hotrodhomi Registered User Join Date: Apr 2004 Location: Sacramento Posts: 3,737	Re: Exhaust Ideas for a dropped 2WD Blazer My blazers exhaust exits out the back under the rear bumper, but I wouldn't recommend that if you run a top. When I had my top on, it created negative pressure in the rear and sucked the exhaust into the cab. Sure, you could do a good job of sealing the rear to prevent this, but they are hard to get sealed. I never have the top on mine, so I can't smell any exhaust when driving. My blazer is bagged and the exhaust runs over the rear axle. The frame is notched to get low enough for the diff to hit the floor and there is still room for the exhaust. __________________ '72 2wd blazer, bagged w/ watts link & EDC '72 C10 "Lowered Farm Truck" STOLEN 5-18-11 '66 impala ht

10-02-2011, 01:26 PM	#6
bigblock68 Registered User Join Date: Sep 2007 Location: vancouver,wa. Posts: 282	Re: Exhaust Ideas for a dropped 2WD Blazer i didnt have enough clearance to go over the axle so i went out the side Attached Images

10-02-2011, 02:18 PM	#8
4oldcars Registered User Join Date: Jun 2004 Location: On The Beach, S C Posts: 613	Re: Exhaust Ideas for a dropped 2WD Blazer I took the easy route like bigblock68 and brought them out in front of the tires. But - - I'm not a pro - - mines not as nice as his. __________________ 4oldcars Driving: 1971 Jimmy w/68 Chev front clip, 1953 Bel Air 2 dr hdtp, 1996 Roadmaster wagon, 2000 Eldorado The ones I let go: 1931 2 dr sedan, 1935 pick up, 1938 2 dr sedan, 1962 SS 454, 1963 409 wagon, 1970 short bed, 1972 short bed, 1972 sub, 1976 short bed, 1986 long bed, 03 short bed

10-02-2011, 04:54 PM	#9
SOON2BLAZE Account Suspended Join Date: Aug 2005 Location: Southern UT Posts: 906	Re: Exhaust Ideas for a dropped 2WD Blazer Mines out the side infront of the rear tires as well. Not much room under there for mufflers. so you need to think about where the exhaust pipe will join to the muffler (center or off set) and same with the exit of the muffler. I'm running a flow master 50 for sound control. They are cooking my A** as they are right behind the front seat. The Fat Mat gets hot. Gonna wrap em in kevlar heat shields in a week or two. Bullet style mufflers would have been a better choice for space, but louder. Running the pipe above an aftermarket trans crossmember and through the trailing arm crossmember will make life much easier for you.

10-02-2011, 05:22 PM	#10
Rochlow Registered User Join Date: Aug 2006 Location: St. Albans, Vt Posts: 2,520	Re: Exhaust Ideas for a dropped 2WD Blazer I ran my straight back with glasspacks and dumped before the rear axle..



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