Firewall holes? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BACKYARD88 · 12-02-2007, 04:18 PM

Does anyone have a pic of a firewall with a description of what each hole is for? I want to get rid of the ones I don't need but I'm not sure what goes whereas mine was pretty much stripped when I got it. I thought there was one floating around the site somewhere but i can't seem to find it now. TIA

Mordachai · 12-02-2007, 04:56 PM

ttt.
I've been looking too....

OhioDan · 12-02-2007, 05:03 PM

Is this the one ya want?

BACKYARD88 · 12-02-2007, 05:23 PM

That would be the one! Thanks OhioDan!

5150 · 12-02-2007, 05:26 PM

thank you for that too. Didn't have it but saved it now. Need to know what to shave

Mordachai · 12-02-2007, 06:23 PM

Thanks!!!

**VetteVet** · 12-02-2007, 06:50 PM

Here's another one that might help.\

teeitup · 12-02-2007, 07:42 PM

I have weird truck!!! Joesjunk, was here and noticed it. The clutch hole is lower, like down on the other flat part. I'm not sure if its a V6 thing or what. Its on a 67 GMC, and its a factory hole. I'll try to get a pic Sat

BACKYARD88 · 12-03-2007, 01:46 PM

That sounds interesting teeitup. I'd like to see it.

Longhorn Man · 12-03-2007, 02:17 PM

here it is;

teeitup · 12-03-2007, 03:35 PM

Yes Andy, thats what I got on this 67 GMC.

Longhorn Man · 12-03-2007, 02:10 PM

I posted about that a few years ago... durring my caddy conversion. My old 69 GMC had the clutch hole down there too, I had done a poll, and IIRC, the GMCs were the only ones like that, but not all of them.

Let me see if I can find a pic

Longhorn Man · 12-03-2007, 04:05 PM

mine was originally a 305 v 6, automatic... I am assuming Th400, but it coulda been a TH350 beng they came out in 69 for the trucks (m49 on the SPID)
Another oddity on that truck, it had the high hump floor. The only thing I could come up with on that was the V-6 1/2 tons with autos got the high hump. Never came acros another v6 auto 1/2 ton to compair it to though. I know the hump was original too, it had the original one year only maroon paint on it.

teeitup · 12-03-2007, 06:13 PM

Mine has a automatic, never really looked to see what type. No high hump in it. These are some strange trucks !!!

67 with a 351 and automatic and in a half ton. Most V6's I've seen are 3/4. That clutch hole is strange

12-02-2007, 04:18 PM	#1
BACKYARD88 On the fast track to nowhere.. Join Date: May 2006 Location: Splendora, Texas Posts: 5,316	Firewall holes? Does anyone have a pic of a firewall with a description of what each hole is for? I want to get rid of the ones I don't need but I'm not sure what goes whereas mine was pretty much stripped when I got it. I thought there was one floating around the site somewhere but i can't seem to find it now. TIA __________________ -Mike Owen- Support the board here! 71 Chevy short fleet build thread Double D Norwood, Houston, Cecilia, Jackson, Monroe and counting

12-02-2007, 04:56 PM	#2
Mordachai Fat Fendered Fleetside Join Date: Nov 2004 Location: WPB, S. FL, USA, Earth Posts: 718	Re: Firewall holes? ttt. I've been looking too.... __________________ 71 GMC lwb 56 Big window swb 93 GMC Sonoma (dd) radiused fiberglass fender project for 67-72

12-02-2007, 05:03 PM	#3
OhioDan Registered User Join Date: Apr 2002 Location: New Carlisle, Ohio,USA Posts: 1,404	Re: Firewall holes? Is this the one ya want? Attached Images __________________ LIFE AIN'T EASY WHEN YER FAT AND GREASY! GMC= Got More Class! 1970 GMC LWB, Fleetside, 350/4spd, Flowmaster "40's", 2002 GMC 16" Rallies, cowl hood,and added a bunch of options that weren't there when I started.

12-02-2007, 05:23 PM	#4
BACKYARD88 On the fast track to nowhere.. Join Date: May 2006 Location: Splendora, Texas Posts: 5,316	Re: Firewall holes? That would be the one! Thanks OhioDan! __________________ -Mike Owen- Support the board here! 71 Chevy short fleet build thread Double D Norwood, Houston, Cecilia, Jackson, Monroe and counting

12-02-2007, 05:26 PM	#5
5150 C10 Club Tennessee Join Date: Mar 2003 Location: White House, TN 37188 Posts: 8,281	Re: Firewall holes? thank you for that too. Didn't have it but saved it now. Need to know what to shave __________________ Bryan www.gmtruckshow.com Project "Andes"-Halen's First Truck Project: Patina Burb for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Romans 13:4

12-02-2007, 06:23 PM	#6
Mordachai Fat Fendered Fleetside Join Date: Nov 2004 Location: WPB, S. FL, USA, Earth Posts: 718	Re: Firewall holes? Thanks!!! __________________ 71 GMC lwb 56 Big window swb 93 GMC Sonoma (dd) radiused fiberglass fender project for 67-72

12-02-2007, 06:50 PM	#7
VetteVet Msgt USAF Ret Join Date: Jan 2005 Location: Kalamazoo, Michigan Posts: 8,717	Re: Firewall holes? Here's another one that might help.\ Attached Images __________________ VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative.

12-02-2007, 07:42 PM	#8
teeitup Just like to part out trucks!! Join Date: Nov 2001 Location: Meriden, Ks-North of Topeka 10 miles Posts: 27,396	Re: Firewall holes? I have weird truck!!! Joesjunk, was here and noticed it. The clutch hole is lower, like down on the other flat part. I'm not sure if its a V6 thing or what. Its on a 67 GMC, and its a factory hole. I'll try to get a pic Sat __________________ 67 Chev swb stepside 4x4 283 4 speed SOLD 72 blazer 4x4 4 speed Cheyenne 72 GMC swb 4x4 fleet 4 speed, original paint 1958 Cameo (one of 1405 built, it was my dads) 2020 chevy Apex 4x4 crew cab 1969 Z28 with the 302 1980 chevy swb 4x4 1964 chevell Malibu SS 1976 K20, sold new originally out of my dads chevy dealership Members that I've met, over 200 probably closer to 300 in the 12 years I've been on this site, everyone I met "It was a pleasure"

12-03-2007, 01:46 PM	#9
BACKYARD88 On the fast track to nowhere.. Join Date: May 2006 Location: Splendora, Texas Posts: 5,316	Re: Firewall holes? That sounds interesting teeitup. I'd like to see it. __________________ -Mike Owen- Support the board here! 71 Chevy short fleet build thread Double D Norwood, Houston, Cecilia, Jackson, Monroe and counting

12-03-2007, 02:17 PM	#10
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Firewall holes? here it is; Attached Images

12-03-2007, 03:35 PM	#11
teeitup Just like to part out trucks!! Join Date: Nov 2001 Location: Meriden, Ks-North of Topeka 10 miles Posts: 27,396	Re: Firewall holes? Yes Andy, thats what I got on this 67 GMC. __________________ 67 Chev swb stepside 4x4 283 4 speed SOLD 72 blazer 4x4 4 speed Cheyenne 72 GMC swb 4x4 fleet 4 speed, original paint 1958 Cameo (one of 1405 built, it was my dads) 2020 chevy Apex 4x4 crew cab 1969 Z28 with the 302 1980 chevy swb 4x4 1964 chevell Malibu SS 1976 K20, sold new originally out of my dads chevy dealership Members that I've met, over 200 probably closer to 300 in the 12 years I've been on this site, everyone I met "It was a pleasure"

12-03-2007, 02:10 PM	#12
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Firewall holes? I posted about that a few years ago... durring my caddy conversion. My old 69 GMC had the clutch hole down there too, I had done a poll, and IIRC, the GMCs were the only ones like that, but not all of them. Let me see if I can find a pic

12-03-2007, 04:05 PM	#13
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Firewall holes? mine was originally a 305 v 6, automatic... I am assuming Th400, but it coulda been a TH350 beng they came out in 69 for the trucks (m49 on the SPID) Another oddity on that truck, it had the high hump floor. The only thing I could come up with on that was the V-6 1/2 tons with autos got the high hump. Never came acros another v6 auto 1/2 ton to compair it to though. I know the hump was original too, it had the original one year only maroon paint on it.

12-03-2007, 06:13 PM	#14
teeitup Just like to part out trucks!! Join Date: Nov 2001 Location: Meriden, Ks-North of Topeka 10 miles Posts: 27,396	Re: Firewall holes? Mine has a automatic, never really looked to see what type. No high hump in it. These are some strange trucks !!! 67 with a 351 and automatic and in a half ton. Most V6's I've seen are 3/4. That clutch hole is strange __________________ 67 Chev swb stepside 4x4 283 4 speed SOLD 72 blazer 4x4 4 speed Cheyenne 72 GMC swb 4x4 fleet 4 speed, original paint 1958 Cameo (one of 1405 built, it was my dads) 2020 chevy Apex 4x4 crew cab 1969 Z28 with the 302 1980 chevy swb 4x4 1964 chevell Malibu SS 1976 K20, sold new originally out of my dads chevy dealership Members that I've met, over 200 probably closer to 300 in the 12 years I've been on this site, everyone I met "It was a pleasure"



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