magnaflow with leaf springs Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

greasy68 · 02-14-2008, 12:18 AM

I am looking to put new exhaust on my truck and I like magnaflow but I looked at their website and it says (coil rears). I did a search and found some good stuff but no one with leaf spring rear. I don't see how it could be that different and I am not opposed to doing some BFH adjustments. My concern is that it will be way off or be a big pain and I would be better just doing custom exhaust. Pictures would be great.

bglad420 · 02-14-2008, 01:57 AM

I'm also curious about this...

70c10 · 02-14-2008, 02:08 AM

I just did a search for the new Thrush system that came out recently for our trucks but it's also for coil spring only according their site.
http://www.thrushexhaust.com/pdf/thrush.pdf

crazy longhorn · 02-14-2008, 05:11 AM

Well, your leaf spring truck is wide open inside the rails, whereas the coil truck has to route the pipes around/over the trailing arms. I dont think you will have any trouble hanging a ex system for a coil truck on your leaf sprung truck(it just might have a few bends that you wouldnt need to have) for your app.The shock mounts are a little different, & you may need to "play with " the hangers. crazyL

whatnow123 · 02-14-2008, 07:13 AM

Quote:

Originally Posted by 70c10

I just did a search for the new Thrush system that came out recently for our trucks but it's also for coil spring only according their site.
http://www.thrushexhaust.com/pdf/thrush.pdf

this is cool. Any idea on the price?

whatnow123 · 02-14-2008, 07:12 AM

I think the problem is more where the pipe exit the out the sides just past the fenders behind the rear tire. I think there would be interference how the pipe exits.

crazy longhorn · 02-14-2008, 09:17 AM

Quote:

Originally Posted by whatnow123

I think the problem is more where the pipe exit the out the sides just past the fenders behind the rear tire. I think there would be interference how the pipe exits.

Yea, it might be an issue around the rear spring hangers.....I like to run em straight out the butt end(sounds better IMO). crazyL

70c10 · 02-14-2008, 07:52 AM

I have no idea on price. I found it in the April 2008 edition of Classic Trucks on page 24 at the bottom. 66-72 GM trucks is part #89027. Complete 2.5" slip fit, bolt on with all pipes, muffs and hardware.

greasy68 · 02-14-2008, 10:25 PM

I think I will throw caution to the wind and buy the kit. I guess worst case I will have to fab the rear exits to go straight out. That is the way mine is now and I prefer it straight out the back under the bumper. Thanks for the help guys.

02-14-2008, 12:18 AM	#1
greasy68 Registered User Join Date: Jan 2008 Location: austin texas Posts: 202	magnaflow with leaf springs Question I am looking to put new exhaust on my truck and I like magnaflow but I looked at their website and it says (coil rears). I did a search and found some good stuff but no one with leaf spring rear. I don't see how it could be that different and I am not opposed to doing some BFH adjustments. My concern is that it will be way off or be a big pain and I would be better just doing custom exhaust. Pictures would be great. __________________ Mike 68 C10 LWB midnight blue metallic 307ci, 700R4, HEI front discs, leaf spring rear tilt steering wheel, stock ride height, rally wheels, 2007 Dodge Charger(Hemi)

02-14-2008, 01:57 AM	#2
bglad420 Registered User Join Date: Dec 2005 Location: Bellingham, WA Posts: 167	Re: magnaflow with leaf springs Question I'm also curious about this... __________________ 70 GMC LWB Fleetside, 402BB, TH400 90K original only cost $50.

02-14-2008, 02:08 AM	#3
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,856	Re: magnaflow with leaf springs Question I just did a search for the new Thrush system that came out recently for our trucks but it's also for coil spring only according their site. http://www.thrushexhaust.com/pdf/thrush.pdf __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

02-14-2008, 05:11 AM	#4
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Re: magnaflow with leaf springs Question Well, your leaf spring truck is wide open inside the rails, whereas the coil truck has to route the pipes around/over the trailing arms. I dont think you will have any trouble hanging a ex system for a coil truck on your leaf sprung truck(it just might have a few bends that you wouldnt need to have) for your app.The shock mounts are a little different, & you may need to "play with " the hangers. crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

02-14-2008, 07:12 AM	#6
whatnow123 Registered User Join Date: Oct 2006 Location: Arizona Posts: 835	Re: magnaflow with leaf springs Question I think the problem is more where the pipe exit the out the sides just past the fenders behind the rear tire. I think there would be interference how the pipe exits. __________________ 67 Short Step, 355, 700R 4.11 posi rear, 4/6 drop Discs on all 4 corners. Build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=219094

02-14-2008, 07:52 AM	#8
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,856	Re: magnaflow with leaf springs Question I have no idea on price. I found it in the April 2008 edition of Classic Trucks on page 24 at the bottom. 66-72 GM trucks is part #89027. Complete 2.5" slip fit, bolt on with all pipes, muffs and hardware. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

02-14-2008, 10:25 PM	#9
greasy68 Registered User Join Date: Jan 2008 Location: austin texas Posts: 202	Re: magnaflow with leaf springs Question I think I will throw caution to the wind and buy the kit. I guess worst case I will have to fab the rear exits to go straight out. That is the way mine is now and I prefer it straight out the back under the bumper. Thanks for the help guys. __________________ Mike 68 C10 LWB midnight blue metallic 307ci, 700R4, HEI front discs, leaf spring rear tilt steering wheel, stock ride height, rally wheels, 2007 Dodge Charger(Hemi)

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