Chrome Bumper Experts - Anyone Know???
Thread Starter
Senior Member
Joined: Jan 2008
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From: Easton, PA
St. Jude Donor '10
Chrome Bumper Experts - Anyone Know???
I have a 1971.
I received a beautiful 1969 bumper today from a very good friend.
When I got it home I compared the two.
I found the 69 bracket that holds the bumperette to be straight.
I found my 71 bracket has an extra bend in it and an extra hole.
Anyone know why the 71 has the extra bend and or know any reason why the 69 bumper wouldn't work on the 71?
Okay, I admit I am not the sharpest pencil in the pile, so have at me.
This is a copy of the bumper details from my AIM. I am speaking about the bracket coming from the bumper used to secure the bumperette.
Thanks for any help...
David
I received a beautiful 1969 bumper today from a very good friend.
When I got it home I compared the two.
I found the 69 bracket that holds the bumperette to be straight.
I found my 71 bracket has an extra bend in it and an extra hole.
Anyone know why the 71 has the extra bend and or know any reason why the 69 bumper wouldn't work on the 71?
Okay, I admit I am not the sharpest pencil in the pile, so have at me.
This is a copy of the bumper details from my AIM. I am speaking about the bracket coming from the bumper used to secure the bumperette.
Thanks for any help...
David
Race Director
Joined: Dec 1999
Posts: 19,610
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From: Forked River NJ
Just a quick look at Zips catalog and they are two different part numbers. 68-69 are the same and 70-72 are the same. I can't say I know what the difference is but it does seem like there is something.
Pro
Joined: Mar 2004
Posts: 640
Likes: 1
From: Mertztown Pa
I looked on Zip's and Paragon's websites and they list 68-72 bumpers made from GM tooling as the same. I am unsure why Zip's catalog shows 2 different bumpers. Perhaps they are different, but the changes are just a little that they do not effect bolt up. Now they do list 68-69 and 70-72 bumperettes, but that is probably because the 68-69 cars have all chrome and the 70-72 cars have black paint on them.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,851
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
The bumpers from 1968-1972 were the same part number and the same part. The bumperettes were different. The 1968-1969 bumperette was bare while the 1970-1972 bumperette had a flange spot welded to it that finished off the slate gray edge created by the new grille design in 1970. I'll see if I have a picture to show you.
Willcox
We'll I don't have a good picture. . . I'm still moving them to this machine. But the main question is about the bumper and yes the bumper is the same.
Willcox
We'll I don't have a good picture. . . I'm still moving them to this machine. But the main question is about the bumper and yes the bumper is the same.
Last edited by Willcox Corvette; Oct 5, 2009 at 11:19 PM.
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 12,146
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From: Easton, PA
St. Jude Donor '10
I almost forgot. My 71 had these two additional brackets attached to them but where they went I don't recall. More food for the kettle.
I certainly appreciate all your help.
David
I certainly appreciate all your help.
David
Team Owner
Joined: Jun 2000
Posts: 38,923
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From: Southbound
Cruise-In II Veteran
I almost forgot. My 71 had these two additional brackets attached to them but where they went I don't recall. More food for the kettle.
Attachment 47643490
Attachment 47643491
I certainly appreciate all your help...
Attachment 47643490
Attachment 47643491
I certainly appreciate all your help...
Melting Slicks
Joined: Feb 2006
Posts: 2,092
Likes: 5
From: Fayetteville Arkansas
Easy Mike is correct... those brackets are for the blinker/ park light grill assembly to bolt onto near or behind the bumperettes. Just guessing... the blinker/park light assemblies were completely different for 68-69 and then the change in 70 model through 72 those have an attachment bracket in there somewhere...behind the bumperettes... i need one of those AIMs on my pc...lol
hope that helps! sorry not more precise
Sully
hope that helps! sorry not more precise
Sully
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Joined: Oct 2000
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From: Shamong, NJ
Attachment 47643488
Attachment 47643489
Here is a picture of the brackets from the 69 bumper and the 71 bumper.
FYI.
David
Attachment 47643489
Here is a picture of the brackets from the 69 bumper and the 71 bumper.
FYI.
David
Originally Chevrolet did make 2 different bumpers: part number 3930410 was the 68-69 bumper, part number 3974008 was the 70-72. The only difference in the 2 bumpers is the brackets you pictured here. The 70-72 bumpers required the extra bend and hole to mount the inner grille brackets. By 1972, Chevrolet had discountinued the the 68-69 bumper and only listed the 3974008 bumper in the parts book with it listed as a 68-72 bumper and includes the note "(Z-shaped bumper guard brkt)". This bumper was the only one offered by Chevrolet for many years and is the bumper that the current repros made by Paragon and Keystone are based on.
Chevrolet discountinued the 68-69 bumper because the 70-72 bumper will work fine, you just don't use the extra holes. Unfortunetly, the 68-69 bumper won't work on a 70-72, because there is no provision for mounting the inner grille brackets.
I have a dented 68-69 bumper on my shelf. I've been saving it because sooner or later, the NCRS is going to figure out the difference and all the 68-69 owners are going to be out there running around wanting to spend lots of money for 68-69 bumpers!
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 12,146
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From: Easton, PA
St. Jude Donor '10
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 12,146
Likes: 2,038
From: Easton, PA
St. Jude Donor '10
Your upper photo is a 68-69 front bumper, the lower photo is a 70-72 bumper.
Originally Chevrolet did make 2 different bumpers: part number 3930410 was the 68-69 bumper, part number 3974008 was the 70-72. The only difference in the 2 bumpers is the brackets you pictured here. The 70-72 bumpers required the extra bend and hole to mount the inner grille brackets. By 1972, Chevrolet had discountinued the the 68-69 bumper and only listed the 3974008 bumper in the parts book with it listed as a 68-72 bumper and includes the note "(Z-shaped bumper guard brkt)". This bumper was the only one offered by Chevrolet for many years and is the bumper that the current repros made by Paragon and Keystone are based on.
Chevrolet discountinued the 68-69 bumper because the 70-72 bumper will work fine, you just don't use the extra holes. Unfortunetly, the 68-69 bumper won't work on a 70-72, because there is no provision for mounting the inner grille brackets.
I have a dented 68-69 bumper on my shelf. I've been saving it because sooner or later, the NCRS is going to figure out the difference and all the 68-69 owners are going to be out there running around wanting to spend lots of money for 68-69 bumpers!
Originally Chevrolet did make 2 different bumpers: part number 3930410 was the 68-69 bumper, part number 3974008 was the 70-72. The only difference in the 2 bumpers is the brackets you pictured here. The 70-72 bumpers required the extra bend and hole to mount the inner grille brackets. By 1972, Chevrolet had discountinued the the 68-69 bumper and only listed the 3974008 bumper in the parts book with it listed as a 68-72 bumper and includes the note "(Z-shaped bumper guard brkt)". This bumper was the only one offered by Chevrolet for many years and is the bumper that the current repros made by Paragon and Keystone are based on.
Chevrolet discountinued the 68-69 bumper because the 70-72 bumper will work fine, you just don't use the extra holes. Unfortunetly, the 68-69 bumper won't work on a 70-72, because there is no provision for mounting the inner grille brackets.
I have a dented 68-69 bumper on my shelf. I've been saving it because sooner or later, the NCRS is going to figure out the difference and all the 68-69 owners are going to be out there running around wanting to spend lots of money for 68-69 bumpers!
Thank you again, much appreciated.
David
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Joined: Oct 2000
Posts: 12,661
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From: Shamong, NJ
Thank you. But one disagreement if I can. The 68-69 bumper can be made to work with the 70-72, you only need one well crafted L-Bracket to fill the void and you are good as Gold. No NCRS for me, so I should be fine. Great place to store a hotly needed 69 bumper is on a 1971, nobody would ever think to look there.
Thank you again, much appreciated.
David
Thank you again, much appreciated.
David
I guess I should have said that the 68-69 bumper won't work on a 70-72 without modifing it.
Thread Starter
Senior Member
Joined: Jan 2008
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From: Easton, PA
St. Jude Donor '10
I haven't crafted the bracket yet, but will do so soon. I'll share what I learn.
Thanks again.
David
