exhaust donut gasket and studs question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

catch2otwo · 02-27-2015, 11:17 AM

So Im looking to finally fix some exhaust leaks but having a hard time getting a definite answer. Looking for the exhaust gaskets that go between the manifold and the exhaust pipes. Looks like a donut. Also looking for the studs. Looks just like the pic below. If I hop on summit, what size gasket am I looking for? Is there a specific name for these? Anyone know the size of the studs? Thanks!

My manifold looks similar to this. Im dumb and didnt grab the pn off of it this morning.

**Already Gone** · 02-27-2015, 11:51 AM

I think you will find what you need in the attached thread from the For sale section.

http://67-72chevytrucks.com/vboard/s...d.php?t=628777

catch2otwo · 02-27-2015, 12:09 PM

Thanks for the link. Still having issues finding any stud info.

PanelDeland · 02-27-2015, 12:11 PM

I found a stud and nut set in the "Help!" Section of Advance. They had the donut behind the counter. The exhaust stud kit had brass nuts which don't seize like a standard nut. I suggest a little anti seize on them also. I also got the next size down exhaust tube with flare and installed it inside the donut letting it run down the exhaust pipe a couple of inches. This aligns everything and takes a load off of the donut as far as ehuast hitting it directly. There was one in there when I did it the first time and then when I had to redo(because the donut gave out) I put one back.

The studs are 3/8 ths and take a 9/16 ths wrench for the nut. The studs I got had a 5/16ths(I think) hex on the end to tighten them into the manifold.

catch2otwo · 02-27-2015, 12:29 PM

Cool ill check out the local autozone.

Is it better to get the all steel donuts like the ones in the classifieds? Ive only ever seen softer graphite type.

02-27-2015, 11:17 AM	#1
catch2otwo Registered User Join Date: Mar 2013 Location: SF Posts: 347	exhaust donut gasket and studs question So Im looking to finally fix some exhaust leaks but having a hard time getting a definite answer. Looking for the exhaust gaskets that go between the manifold and the exhaust pipes. Looks like a donut. Also looking for the studs. Looks just like the pic below. If I hop on summit, what size gasket am I looking for? Is there a specific name for these? Anyone know the size of the studs? Thanks! My manifold looks similar to this. Im dumb and didnt grab the pn off of it this morning.

02-27-2015, 11:51 AM	#2
Already Gone 70+ ( Old Skool Club ) Join Date: Nov 2003 Location: Saskatoon, Saskatchewan ,Canada Posts: 9,139	Re: exhaust donut gasket and studs question I think you will find what you need in the attached thread from the For sale section. http://67-72chevytrucks.com/vboard/s...d.php?t=628777 __________________ 1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021

02-27-2015, 12:09 PM	#3
catch2otwo Registered User Join Date: Mar 2013 Location: SF Posts: 347	Re: exhaust donut gasket and studs question Thanks for the link. Still having issues finding any stud info.

02-27-2015, 12:11 PM	#4
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	Re: exhaust donut gasket and studs question I found a stud and nut set in the "Help!" Section of Advance. They had the donut behind the counter. The exhaust stud kit had brass nuts which don't seize like a standard nut. I suggest a little anti seize on them also. I also got the next size down exhaust tube with flare and installed it inside the donut letting it run down the exhaust pipe a couple of inches. This aligns everything and takes a load off of the donut as far as ehuast hitting it directly. There was one in there when I did it the first time and then when I had to redo(because the donut gave out) I put one back. The studs are 3/8 ths and take a 9/16 ths wrench for the nut. The studs I got had a 5/16ths(I think) hex on the end to tighten them into the manifold. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" Last edited by PanelDeland; 02-27-2015 at 12:19 PM.

02-27-2015, 12:29 PM	#5
catch2otwo Registered User Join Date: Mar 2013 Location: SF Posts: 347	Re: exhaust donut gasket and studs question Cool ill check out the local autozone. Is it better to get the all steel donuts like the ones in the classifieds? Ive only ever seen softer graphite type.



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