Another mystery bracket? and some ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**68ls1** · 01-03-2022, 07:23 AM

As i work through this project I have come aceoos another bracket I can't seem to find in assembly manual or online, any ideas, it is the 90 degree bracket attached to inner quarter post?

Question 1: there is a bolt that holds elbow bracket for hard top to post missing, but there is no nut to attach to, should there be a cage nut on post?

Question 2: What size bolt holds the rear of back seat? Mine has 4 legs but no bolts

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Name: IMG_2377 copy.jpg
Views: 307
Size: 90.5 KB

**DeadheadNM** · 01-03-2022, 08:42 AM

The 90 degree bracket was added by a prior owner and should be removed to allow fitment for the bedside to tailgate seal and it’s bracket.

There is a captured nut/nutsert that should be in place on the bedside to affix the top to bedside bracket. These commonly are broken loose/missing.

Can’t recall the bolt size off hand for the rear of rear seat but fwiw most 72s used a two bracket arrangement and these made use of seat belt bolts.

**richard2717** · 01-03-2022, 10:01 AM

Front brackets use 7/16x 20x 1.5" bolts
rear brackets use 1/2"x 13x 1.5" bolts

**68ls1** · 01-03-2022, 05:58 PM

Quote:

Originally Posted by DeadheadNM

The 90 degree bracket was added by a prior owner and should be removed to allow fitment for the bedside to tailgate seal and it’s bracket.

There is a captured nut/nutsert that should be in place on the bedside to affix the top to bedside bracket. These commonly are broken loose/missing.

Can’t recall the bolt size off hand for the rear of rear seat but fwiw most 72s used a two bracket arrangement and these made use of seat belt bolts.

Quote:

Originally Posted by richard2717

Front brackets use 7/16x 20x 1.5" bolts
rear brackets use 1/2"x 13x 1.5" bolts

thanks guys. I just keep taking non original stuff of this truck

**68ls1** · 01-03-2022, 07:47 PM

Quote:

Originally Posted by DeadheadNM

The 90 degree bracket was added by a prior owner and should be removed to allow fitment for the bedside to tailgate seal and it’s bracket.

Found items on Motor City K5 web site, another to add to shopping list

**68ls1** · 01-03-2022, 07:49 PM

Quote:

Originally Posted by DeadheadNM

There is a captured nut/nutsert that should be in place on the bedside to affix the top to bedside bracket. These commonly are broken loose/missing.

What is the best way to fix? Cut out a patch including hole from post, then weld captured nut to patch and then weld patch back in to post?

Or do you remove post?

notsolo · 01-03-2022, 08:00 PM

No weld option, cut a piece of 1/4 " plate, drill and tap the threads in correct location glue,/ polyurethane caulk in back through the slot. Square plate won't spin.

**1rippen6** · 01-03-2022, 10:16 PM

What year is your blazer, 69 and some 70s don't have the nut but if they didn't have the nut the top didn't have the elbow bracket. They make a nut that crimps into position and looks almost like original, I can get a picture if interested, all you'll have to do is drill a hole.

**DeadheadNM** · 01-03-2022, 10:32 PM

You could pop a nutsert in place: https://www.auveco.com/nutserts

How to install a Nut-Sert with the Smittybilt...

01-03-2022, 07:23 AM	#1
68ls1 Senior Member Join Date: Jan 2008 Location: Melbourne, Victoria, Australia Posts: 216	Another mystery bracket? and some ? As i work through this project I have come aceoos another bracket I can't seem to find in assembly manual or online, any ideas, it is the 90 degree bracket attached to inner quarter post? Question 1: there is a bolt that holds elbow bracket for hard top to post missing, but there is no nut to attach to, should there be a cage nut on post? Question 2: What size bolt holds the rear of back seat? Mine has 4 legs but no bolts

01-03-2022, 08:42 AM	#2
DeadheadNM Carpe manana Join Date: Dec 2010 Location: Eau Claire, WI Posts: 12,285	Re: Another mystery bracket? and some ? The 90 degree bracket was added by a prior owner and should be removed to allow fitment for the bedside to tailgate seal and it’s bracket. There is a captured nut/nutsert that should be in place on the bedside to affix the top to bedside bracket. These commonly are broken loose/missing. Can’t recall the bolt size off hand for the rear of rear seat but fwiw most 72s used a two bracket arrangement and these made use of seat belt bolts. __________________ 1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland

01-03-2022, 10:01 AM	#3
richard2717 Equal opportunity joke ofender Join Date: Oct 2011 Location: Eastern Shore of MD Posts: 9,885	Re: Another mystery bracket? and some ? Front brackets use 7/16x 20x 1.5" bolts rear brackets use 1/2"x 13x 1.5" bolts __________________ Members I have met. Dually Jams, OlBlue60, ScottH, Tommyboy24, Dujobo, Warbucket, 2003 Silverado, Notsolo, my90k5, 6t727t2, Special-K ,Jack_71C10, tabarcus,72blazer_mud_bogger,pwdcougar,RSavage,EricSean,1Rippen6,invicta455,tennaragtop71,arks, Kendal,Bennett68C10, Perpendicular, Chainsawman, McGeesCustomMinis,ShortbedClayton,longblue72,6768chevylover,Tim71,Travisarmenta,Ol' Drippy,fleetmitch,georgieb51,Dave,bcnya2,Dadsburb https://paypal.me/6772GMtruckparts Most women like the strong, silent type… Fortunately for me, my wife prefers the out-of-shape, mouthy type.

01-03-2022, 08:00 PM	#7
notsolo Registered User Join Date: Apr 2008 Location: Md Posts: 2,451	Re: Another mystery bracket? and some ? No weld option, cut a piece of 1/4 " plate, drill and tap the threads in correct location glue,/ polyurethane caulk in back through the slot. Square plate won't spin. __________________ http://67-72chevytrucks.com/vboard/s...d.php?t=635605

01-03-2022, 10:16 PM	#8
1rippen6 Senior Member Join Date: May 2011 Location: Greencastle PA Posts: 6,708	Re: Another mystery bracket? and some ? What year is your blazer, 69 and some 70s don't have the nut but if they didn't have the nut the top didn't have the elbow bracket. They make a nut that crimps into position and looks almost like original, I can get a picture if interested, all you'll have to do is drill a hole.



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