frame rivets size - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Chevyc10572 · 02-05-2015, 12:46 PM

What size are the rivets in the frame

**71blksuper4x4** · 02-05-2015, 05:11 PM

In between 3/8 & 7/16. There is size between them that is a perfect match, but isn't made anymore. I am drilling my holes for 7/16 rivets in the crew frame.

**Tim Christian** · 02-05-2015, 07:53 PM

I have some somewhere I will see if I can find them

Chevyc10572 · 02-05-2015, 09:05 PM

Quote:

Originally Posted by Tim Christian

I have some somewhere I will see if I can find them

Does the frame use the same size rivet on the hole frame

**CUSTOM/10** · 02-06-2015, 08:04 AM

The frame rivets are 11/32 but are very difficult to find. The next size up is 7/16.

Gary

Keith Seymore · 02-06-2015, 09:30 AM

3/8" grade eight bolts were used as the assembly line repair for miss hit or missing rivets.

Is there a reason you want to re-install a rivet rather than a bolt?

K

Chevyc10572 · 02-06-2015, 10:32 PM

I'm going back to original thats why I want to know what size

Keith Seymore · 02-07-2015, 11:45 AM

No problem.

Just wanted to make sure you were aware that a bolt is an acceptable GM authorized repair, in case you could go that way.

K

Chevyc10572 · 02-07-2015, 02:54 PM

So whats the right size

**CUSTOM/10** · 02-07-2015, 03:09 PM

11/32 is the original size, but you may not be able to find any. So the next best thing is to step up to 7/16. That's what I did.

bbcmudtruck · 02-07-2015, 04:04 PM

Yep, I've replaced most of the rivets in my frame with grade 8 7/16.

*Fitz* · 02-07-2015, 04:28 PM

Quote:

Originally Posted by CUSTOM/10

11/32 is the original size, but you may not be able to find any. So the next best thing is to step up to 7/16. That's what I did.

You can find them here:

http://www.rivetsinstock.com/rivets/...id-rivets.html

Chevyc10572 · 02-07-2015, 05:06 PM

Quote:

Originally Posted by CUSTOM/10

11/32 is the original size, but you may not be able to find any. So the next best thing is to step up to 7/16. That's what I did.

Do I have to do any drilling

**71blksuper4x4** · 02-07-2015, 05:25 PM

Quote:

Originally Posted by Chevyc10572

Do I have to do any drilling

Yes you will have to drill to the 7/16 hole id.

bbcmudtruck · 02-07-2015, 07:07 PM

A good bit will need to be used if your replacing a lot of rivets. I've went through two high grade bits, but I've also replaced nearly every rivet with a 7/16 bolt.

Chevyc10572 · 02-08-2015, 04:24 AM

Are there different lengths I need to know

bbcmudtruck · 02-08-2015, 12:19 PM

Which rivets are you replacing? I used a few different lengths in a few different places. I also used a washer on the top and bottom along with a lock washer. That took a little longer bolt in some places. Here's how the order went, bolt, flat washer, frame/cross member, flat washer, lock washer, nut. I think for the most of the cross members I used 1 1/4" to 1 1/2".

Chevyc10572 · 02-08-2015, 05:12 PM

What length rivets

**CUSTOM/10** · 02-09-2015, 08:05 AM

There are different lengths depending on how many layers of steel the rivet has to pass through. I believe it's Big Flats rivets site that has the instructions, maybe other sites do also. I bought like 1-1/2 in rivets and cut them to the proper length using their formula.

**CUSTOM/10** · 02-09-2015, 08:17 AM

http://bigflatsrivet.com

Here's a link to Big flats, they have the instructions down at the bottom of the page on the left.

02-05-2015, 12:46 PM	#1
Chevyc10572 Registered User Join Date: Jan 2012 Location: Gig harbor washington Posts: 246	frame rivets size What size are the rivets in the frame __________________ 1970 chevy short box c10 factory 402 big block with AC 2008 chevy silverado regular cab short bed lowered 1990 454ss 52,000 miles 5/6 drop

02-05-2015, 05:11 PM	#2
71blksuper4x4 SWB 4x4 Collector Join Date: Jun 2001 Location: Osage City, KS Posts: 5,155	Re: frame rivets size In between 3/8 & 7/16. There is size between them that is a perfect match, but isn't made anymore. I am drilling my holes for 7/16 rivets in the crew frame. __________________ TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever

02-05-2015, 07:53 PM	#3
Tim Christian Senior Member Join Date: Dec 1999 Location: TN/VA Posts: 6,389	Re: frame rivets size I have some somewhere I will see if I can find them

02-06-2015, 08:04 AM	#5
CUSTOM/10 Senior Member Join Date: May 2003 Location: Sandown, NH Posts: 2,871	Re: frame rivets size The frame rivets are 11/32 but are very difficult to find. The next size up is 7/16. Gary __________________ Gary 72 SWB 4x4 My 72 SWB Build http://67-72chevytrucks.com/vboard/s...d.php?t=259859

02-06-2015, 09:30 AM	#6
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,287	Re: frame rivets size 3/8" grade eight bolts were used as the assembly line repair for miss hit or missing rivets. Is there a reason you want to re-install a rivet rather than a bolt? K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

02-06-2015, 10:32 PM	#7
Chevyc10572 Registered User Join Date: Jan 2012 Location: Gig harbor washington Posts: 246	Re: frame rivets size I'm going back to original thats why I want to know what size __________________ 1970 chevy short box c10 factory 402 big block with AC 2008 chevy silverado regular cab short bed lowered 1990 454ss 52,000 miles 5/6 drop

02-07-2015, 11:45 AM	#8
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,287	Re: frame rivets size No problem. Just wanted to make sure you were aware that a bolt is an acceptable GM authorized repair, in case you could go that way. K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

02-07-2015, 02:54 PM	#9
Chevyc10572 Registered User Join Date: Jan 2012 Location: Gig harbor washington Posts: 246	Re: frame rivets size So whats the right size __________________ 1970 chevy short box c10 factory 402 big block with AC 2008 chevy silverado regular cab short bed lowered 1990 454ss 52,000 miles 5/6 drop

02-07-2015, 03:09 PM	#10
CUSTOM/10 Senior Member Join Date: May 2003 Location: Sandown, NH Posts: 2,871	Re: frame rivets size 11/32 is the original size, but you may not be able to find any. So the next best thing is to step up to 7/16. That's what I did. __________________ Gary 72 SWB 4x4 My 72 SWB Build http://67-72chevytrucks.com/vboard/s...d.php?t=259859

02-07-2015, 04:04 PM	#11
bbcmudtruck Registered User Join Date: Nov 2012 Location: ravenwood, mo Posts: 709	Re: frame rivets size Yep, I've replaced most of the rivets in my frame with grade 8 7/16.

02-07-2015, 07:07 PM	#15
bbcmudtruck Registered User Join Date: Nov 2012 Location: ravenwood, mo Posts: 709	Re: frame rivets size A good bit will need to be used if your replacing a lot of rivets. I've went through two high grade bits, but I've also replaced nearly every rivet with a 7/16 bolt.

02-08-2015, 04:24 AM	#16
Chevyc10572 Registered User Join Date: Jan 2012 Location: Gig harbor washington Posts: 246	Re: frame rivets size Are there different lengths I need to know __________________ 1970 chevy short box c10 factory 402 big block with AC 2008 chevy silverado regular cab short bed lowered 1990 454ss 52,000 miles 5/6 drop

02-08-2015, 12:19 PM	#17
bbcmudtruck Registered User Join Date: Nov 2012 Location: ravenwood, mo Posts: 709	Re: frame rivets size Which rivets are you replacing? I used a few different lengths in a few different places. I also used a washer on the top and bottom along with a lock washer. That took a little longer bolt in some places. Here's how the order went, bolt, flat washer, frame/cross member, flat washer, lock washer, nut. I think for the most of the cross members I used 1 1/4" to 1 1/2".

02-08-2015, 05:12 PM	#18
Chevyc10572 Registered User Join Date: Jan 2012 Location: Gig harbor washington Posts: 246	Re: frame rivets size What length rivets __________________ 1970 chevy short box c10 factory 402 big block with AC 2008 chevy silverado regular cab short bed lowered 1990 454ss 52,000 miles 5/6 drop

02-09-2015, 08:05 AM	#19
CUSTOM/10 Senior Member Join Date: May 2003 Location: Sandown, NH Posts: 2,871	Re: frame rivets size There are different lengths depending on how many layers of steel the rivet has to pass through. I believe it's Big Flats rivets site that has the instructions, maybe other sites do also. I bought like 1-1/2 in rivets and cut them to the proper length using their formula. __________________ Gary 72 SWB 4x4 My 72 SWB Build http://67-72chevytrucks.com/vboard/s...d.php?t=259859



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02-09-2015, 08:17 AM	#20
CUSTOM/10 Senior Member Join Date: May 2003 Location: Sandown, NH Posts: 2,871	Re: frame rivets size http://bigflatsrivet.com Here's a link to Big flats, they have the instructions down at the bottom of the page on the left. __________________ Gary 72 SWB 4x4 My 72 SWB Build http://67-72chevytrucks.com/vboard/s...d.php?t=259859

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