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#1 |
Senior Member
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Location: Martensville, Saskatchewan
Posts: 960
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Re: My 1970 GMC Project
By the way, I'm sure that you must have a build thread somewhere but I haven't been able to find it. I'd like to take a read through it if you could drop a link.
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#2 |
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Join Date: Apr 2014
Location: Azle,Texas
Posts: 2,248
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Re: My 1970 GMC Project
To my shame I have never started a thread. I've wanted to but just haven't done it. I sure have learned a ton from other guys work. I really haven't done much of anything that's truly original... it's all been done before. That's probably a poor excuse though. I'll give it a think again.
![]() A good reason to do it is for others to help keep me motivated, and also to be able to show anyone that asks me about it in the future, when I am daily driving it.
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Brian 1972 C10, "Loyd", LWB to SWB, 5.3, L83/6L80e, 4:11 Tru Trac, Air Ride, VA, DD, 20" Coys, 4 wheel disc, A quick LS swap turned into a 6 year frame off resto-mod. |
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#3 | |
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Location: Martensville, Saskatchewan
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Re: My 1970 GMC Project
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#4 |
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Re: My 1970 GMC Project
Firewall update
I managed to get some grinding and a bit more welding accomplished in the last week. It was slow going as I was working a side job almost every evening over the last week. This week will hopfully see some quicker progress. I got the expansion that I had done to the engine recess ground down and complete. It will definatly be needing a coat of filler. ![]() |
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#5 |
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Join Date: Apr 2014
Location: Azle,Texas
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Re: My 1970 GMC Project
Your firewall is going to look killer all evened out like that. I notice that you got rid of the little bump that was on the top of the passenger side heater delete panel. I did that also. I do plan on "permanently borrowing" your idea on the drivers side. I've never seen that done and it's a huge improvement.
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Brian 1972 C10, "Loyd", LWB to SWB, 5.3, L83/6L80e, 4:11 Tru Trac, Air Ride, VA, DD, 20" Coys, 4 wheel disc, A quick LS swap turned into a 6 year frame off resto-mod. |
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#6 |
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Join Date: Jan 2010
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Re: My 1970 GMC Project
I would raise what you have drawn so it's symmetrical with the other side. It will look more detailed with the e brake area bumped up but i would have the threads welded on the Inside of the firewall so you can't see the bolt /nut. Just the grommet and cable viable on the outer firewall.
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#7 | |
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Re: My 1970 GMC Project
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#8 |
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Re: My 1970 GMC Project
Cornerstone, just curious what you did here in the red circle? I know there are supposed to be 2 holes for the steering column clamp. I only see 1. Just curious how you plan for this area to clamp the column and look smooth?
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#9 |
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Re: My 1970 GMC Project
And here we have it folks. One symmetrical section from side to side. Well other than the lower piece that I still have to do. Then after that, only 10 or so more holes to fill in.
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#10 | |
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Join Date: Apr 2014
Location: Azle,Texas
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Re: My 1970 GMC Project
Quote:
![]() I'm sure glad I didn't weld it up! ![]() Sorry for the hijack Kyle...
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Brian 1972 C10, "Loyd", LWB to SWB, 5.3, L83/6L80e, 4:11 Tru Trac, Air Ride, VA, DD, 20" Coys, 4 wheel disc, A quick LS swap turned into a 6 year frame off resto-mod. Last edited by cornerstone; 03-21-2020 at 10:03 PM. |
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#11 |
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Location: Azle,Texas
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Re: My 1970 GMC Project
Looks great Kyle! I'm scratchin' my head trying to figure out how that was done... Care to share anymore pictures?
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Brian 1972 C10, "Loyd", LWB to SWB, 5.3, L83/6L80e, 4:11 Tru Trac, Air Ride, VA, DD, 20" Coys, 4 wheel disc, A quick LS swap turned into a 6 year frame off resto-mod. |
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#12 |
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Join Date: Jun 2018
Location: Texas
Posts: 1,353
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Re: My 1970 GMC Project
Looks great!
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TA_C10 Stage 1 build - http://67-72chevytrucks.com/vboard/s....php?p=8333444 "It's only money". ![]() |
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#13 |
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Re: My 1970 GMC Project
Thanks. Hoping to be back out later tonight working on the lower area.
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#14 |
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Re: My 1970 GMC Project
That looks nice
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#15 |
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Re: My 1970 GMC Project
Thanks! I like it, worth the month it took me.
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#16 |
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Re: My 1970 GMC Project
One more piece of the puzzle wrapped up tonight. Although we never found the complete accelerator pedal at my dad's, we did find the mounting base which is all I needed for the time being. I took a piece of 1/4" flat steel I had and cut it down to be just slightly smaller than the pedal base itself. Then I drilled the three holes for the mounting studs. After I had that figured out, I drilled about 3/4 of the depth of the plate with progressively larger drill bits so that I had a place for the weld to sit. Then I cut off the heads from some bolts for the studs which I tac welded into the holes. I did not fully weld at this point because i did not want the heat from my welds to pull the studs out of alignment. So I put the studs into the original captive nuts in the firewall and then welded it home. From there it was just some grinding to remove the captive nuts and spot welding the plate into position using the original holes!
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#17 |
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Join Date: Jun 2018
Location: Texas
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Re: My 1970 GMC Project
Nice work I like that a lot better than stock. So I assume your going back with stock pedal and a cable TB?
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#18 |
Senior Member
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Re: My 1970 GMC Project
Yes I am going to stick with the stock pedal setup as I am still going to be carbureted at least until I can afford an efi setup but I'm still going to be old style with a 396.
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#19 |
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Re: My 1970 GMC Project
I think that about wraps up the sheet metal work on the outside of the firewall. Tonight I got the E-Brake all figured out. What i ended up doing was I cut the studs out of the E-Brake so that i could reverse them and have everything except obviously the cable on the inside.
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#20 |
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Join Date: Apr 2014
Location: Azle,Texas
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Re: My 1970 GMC Project
It is amazing what a guy will go through to have a clean firewall! More nice work man. You better watch out or your gonna have a trailer queen on your hands.
![]() What kind of hooch is this???
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Brian 1972 C10, "Loyd", LWB to SWB, 5.3, L83/6L80e, 4:11 Tru Trac, Air Ride, VA, DD, 20" Coys, 4 wheel disc, A quick LS swap turned into a 6 year frame off resto-mod. Last edited by cornerstone; 03-26-2020 at 01:08 AM. |
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#21 | |
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Re: My 1970 GMC Project
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#22 | |
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Location: Texas
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Re: My 1970 GMC Project
Quote:
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#23 |
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Location: Texas
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Re: My 1970 GMC Project
I'm keeping my kick panel vents for that same reason. I don't want to have issues, and sometimes it's beneficial to have fresh air come in.
Windshield looks great. I should have done that one too since it's going to be my DD and I'm a little worried about windshield leaks.
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#24 | |
Senior Member
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Location: Martensville, Saskatchewan
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Re: My 1970 GMC Project
Quote:
![]() As for the windshield, as long as you get those seams filled up nicely with some sort of seam sealer, I think you would be fine. I didn't even think to much on that, I was more motivated to have my drip rail appear seamless all the way around. I suppose it probably would be helpful in the leak department as well. |
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#25 |
Senior Member
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Location: Martensville, Saskatchewan
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Re: My 1970 GMC Project
Well I guess that answer that question. I spent the morning making a die for hammering out some louvers. I think if I was to have three louvers in each side, it should be able to pull enough fresh air through for everything to remain happy. I'm hoping that it will also double as a pressure relief for closing the doors as this would allow me to remove the one in the drivers door jamb for a cleaner look.
Oh and cornerstone, I've included pics of my grinding arsenal if your interested. |
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