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02-20-2014, 11:49 AM
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#1 |
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Registered User
 
Join Date: Oct 2006
Location: Southern Kalifornia
Posts: 3,066
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Firewall differences?
Ok, so another question about my "77"...I had to strip down the interior because of mouse poop....so I am now in the reassemble process and want to install a new firewall pad....I'm "thinking" the cab haas been changed and the old vin plate attached to it. Reason is the front headlights and core support are 1980(square headlights), the wiring harness matches the 78-80(plastic fuses and different wiper motor) the bed has fuel doors and the fuel system(tanks and switching valve) have a return line( PO made one from engine to switching valve from copper tubing)....
So what I want to know is...what is the difference in the firewalls?(different shaped holes or locations?) The pads are listed 73-79 and then 80-up? Thanks
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------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT |
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02-20-2014, 11:50 AM
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#2 |
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Registered User
Join Date: Oct 2006
Location: Southern Kalifornia
Posts: 3,066
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Re: Firewall differences?
and BTW it has a "77" frame...verified the vin on frame rails....
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------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT |
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02-20-2014, 05:08 PM
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#3 |
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Registered User
Join Date: May 2010
Location: Rochester NY
Posts: 831
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Re: Firewall differences?
If your talking dash pad, you need the early one if the vin plates on the door pillar.
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1973 k20 Suburban 350 1974 Custom stepside c-10 250 1975 Chevy stepside 454 1986 K30 Crewcab SRW 350 R.I.P- glimmertwin01- board member and good friend, you will be missed |
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02-20-2014, 05:22 PM
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#4 | |
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Senior Member
Join Date: Jun 2010
Location: Illinois
Posts: 2,957
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Re: Firewall differences?
Quote:
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Roy 85 Short Bed Silverado- Work in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=564818 1987 R10 shortie |
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02-20-2014, 06:16 PM
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#5 | |
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Registered User
Join Date: May 2010
Location: Rochester NY
Posts: 831
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Re: Firewall differences?
Quote:
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1973 k20 Suburban 350 1974 Custom stepside c-10 250 1975 Chevy stepside 454 1986 K30 Crewcab SRW 350 R.I.P- glimmertwin01- board member and good friend, you will be missed |
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02-20-2014, 06:59 PM
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#6 | |
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Registered User
Join Date: Oct 2006
Location: Southern Kalifornia
Posts: 3,066
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Re: Firewall differences?
Quote:
__________________
------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT |
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02-20-2014, 07:25 PM
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#7 |
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Robert Olson Transport
 
Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,287
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Re: Firewall differences?
the differences that I can remember was the ac and non ac cabs have different holes if you have a 3 on the three there is a separate hole ( I think they weren't on the tree after like 80 maybe im wrong) Its been so long I don't recall since I put the 81 cab on the 76 frame
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Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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02-21-2014, 08:06 AM
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#8 |
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Registered User
Join Date: Nov 2011
Location: yucca valley,ca
Posts: 206
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Re: Firewall differences?
I don't think there are any except the 81-87 cowl hood hinge area I have a 81 and stripped 73 cab and there basically identical just diffrent holes punched both are a/c cabs all the areas that can be drilled are there even the hole for the ecm harness on 83-87 just my .02
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02-21-2014, 10:23 AM
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#9 |
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Registered User
Join Date: Apr 2009
Location: Oregon
Posts: 34
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Re: Firewall differences?
I read it as "....moose poop..." at first.
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02-22-2014, 04:52 PM
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#10 | |
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Registered User
Join Date: Oct 2006
Location: Southern Kalifornia
Posts: 3,066
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Re: Firewall differences?
Quote:
__________________
------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT |
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