The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-30-2009, 09:54 PM   #1
JQE80
Registered User
 
Join Date: Jul 2001
Location: Dayton,OH
Posts: 50
73-80 bumpers on 81-87 frame?

First off where is the search thats normally above the posts at? I can't find the tab to click on that says search this forum? OK my question is that I am in the process of switching my 79 over to an 87 or so frame, I know the front of the frame is different so how do I go about mounting up some older bumpers to the newer frame?

Jarrid
__________________
79 c-10
big 10
JQE80 is offline   Reply With Quote
Old 08-30-2009, 10:23 PM   #2
N2TRUX
Happy to be here
 
N2TRUX's Avatar
 
Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,021
Re: 73-80 bumpers on 81-87 frame?

Search has been disabled for now. You will need to cut off a set of 73-80 frame rails, or modify your 81-87 rails. The difference in shape won't allow the bumpers to swap with out some frame mods.
__________________
Follow me on Facebook and Instagram @N2trux.com

Articles-

"Jake" the 84 to 74 crewcab

"Elwood" the77_Remix

85 GMC Sierra "Scarlett"

"Refining Sierra"
N2TRUX is offline   Reply With Quote
Old 08-30-2009, 10:30 PM   #3
JQE80
Registered User
 
Join Date: Jul 2001
Location: Dayton,OH
Posts: 50
Re: 73-80 bumpers on 81-87 frame?

Yeah I know the older ones are rounded and the newer are kinda diagonal. Just was hoping to get some step by step or a guide from someone that has done this. Can I just cut the newer style frame so that it is shaped like the old style or is the best way to cut off the rounded style and weld them onto my 87 frame?
__________________
79 c-10
big 10
JQE80 is offline   Reply With Quote
Old 09-01-2009, 11:49 PM   #4
JQE80
Registered User
 
Join Date: Jul 2001
Location: Dayton,OH
Posts: 50
Re: 73-80 bumpers on 81-87 frame?

anyone have any more info?

Jarrid
__________________
79 c-10
big 10
JQE80 is offline   Reply With Quote
Old 09-02-2009, 12:12 AM   #5
Mtrhd329
Registered User
 
Join Date: Jan 2008
Location: Chowchilla, Ca
Posts: 115
Re: 73-80 bumpers on 81-87 frame?

Back when i was 15 I got an 85 junkyard bumper to fit my 79. Not sure if it was supposed to work but i used to brackets that i got with the newer bumper because my old brackets wouldnt fit.
Mtrhd329 is offline   Reply With Quote
Old 09-02-2009, 12:15 AM   #6
JQE80
Registered User
 
Join Date: Jul 2001
Location: Dayton,OH
Posts: 50
Re: 73-80 bumpers on 81-87 frame?

Well I am trying to do the opposite of that but I do have my old front brackets and bumper so maybe I will play around with that.

Jarrid
__________________
79 c-10
big 10
JQE80 is offline   Reply With Quote
Old 09-02-2009, 11:22 AM   #7
454HO
Registered User
 
Join Date: Apr 2005
Location: Austin, TX
Posts: 1,223
Re: 73-80 bumpers on 81-87 frame?

I am wanting to do the same thing, put a 73-80 bumper on an 86 frame. I have the correct bumper brackets, but I have not found a suitable bumper yet.
__________________
- Greg
454HO is offline   Reply With Quote
Old 09-02-2009, 06:17 PM   #8
JQE80
Registered User
 
Join Date: Jul 2001
Location: Dayton,OH
Posts: 50
Re: 73-80 bumpers on 81-87 frame?

Is that all it takes? Just the old bumper brackets for the newer frame? I have took the bumper and brackets right off my 79 frame so should it bolt on to the newer style frame then?

Jarrid
__________________
79 c-10
big 10
JQE80 is offline   Reply With Quote
Old 09-02-2009, 06:36 PM   #9
454HO
Registered User
 
Join Date: Apr 2005
Location: Austin, TX
Posts: 1,223
Re: 73-80 bumpers on 81-87 frame?

Quote:
Originally Posted by JQE80 View Post
Is that all it takes? Just the old bumper brackets for the newer frame? I have took the bumper and brackets right off my 79 frame so should it bolt on to the newer style frame then?

Jarrid
I did not mean to imply that. I don't have a bumper to try it. But I know that to go the other way you only need to trim the top part of the frame a bit.
__________________
- Greg
454HO is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:18 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com