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 1967 - 1972 Chevrolet & GMC Pickups Message Board > 67-72 Chevrolet & GMC Pickups Projects and Builds

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-01-2025, 11:07 AM   #1
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

So I had started welding up holes in the firewall to try to clean it up a bit. It's taken me awhile to decide what to keep and what to get rid of, hopefully I won't end up cutting them all back out!

I started with the seams at the panel joints around the window. Some people will say that if poorly mated panels filled with copious amounts of putty are good enough for GM then we should be happy with it. Sorry guys, that decision was made for the sake of assembly speed and because the bean counters wouldn't approve the time and money for full welds.

So I filled them with welding wire and marglas. Haven't got them prepped enough for paint but they aren't too bad.
Attached Images
  
raggedjim is offline   Reply With Quote
Old 07-01-2025, 11:13 AM   #2
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

I also welded the seams on the drip rail and tried to even it up as much as possible.
Attached Images
  
raggedjim is offline   Reply With Quote
Old 07-01-2025, 12:11 PM   #3
loudchevy
Senior Member
 
loudchevy's Avatar
 
Join Date: Oct 2012
Location: Phx, AZ
Posts: 553
Re: Previous owner '68

Quote:
Originally Posted by raggedjim View Post
I also welded the seams on the drip rail and tried to even it up as much as possible.
Looking good! I regret not welding the seams on mine. It looks way cleaner without the joint showing.
__________________
Scott
1970 C10 Restomod|454/700R4|LWB-->SWB Build Thread
2014 2500HD DirtyMax|Daily Driver|Stock
2003 Tahoe Stock
1985 K5 5.3LS/4L60E|8Lug 4:56|3/4 Ton Front|14BFF Rear|Roll Cage|Dove-tailed & Bobbed
loudchevy is offline   Reply With Quote
Old 07-01-2025, 12:20 PM   #4
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

Quote:
Originally Posted by loudchevy View Post
Looking good! I regret not welding the seams on mine. It looks way cleaner without the joint showing.
Thanks! This is the first time I've filled them in, I always used to just gloop in a bunch of sealant and hope for the best.

I've got to stop looking at other people's build threads, it has caused a bit ( a lot actually) of project creep...
raggedjim is offline   Reply With Quote
Old 07-02-2025, 10:04 AM   #5
loudchevy
Senior Member
 
loudchevy's Avatar
 
Join Date: Oct 2012
Location: Phx, AZ
Posts: 553
Re: Previous owner '68

Quote:
Originally Posted by raggedjim View Post
Thanks! This is the first time I've filled them in, I always used to just gloop in a bunch of sealant and hope for the best.

I've got to stop looking at other people's build threads, it has caused a bit ( a lot actually) of project creep...
The "project creep" is real for sure, but I think the "might as well" hits harder sometimes.
__________________
Scott
1970 C10 Restomod|454/700R4|LWB-->SWB Build Thread
2014 2500HD DirtyMax|Daily Driver|Stock
2003 Tahoe Stock
1985 K5 5.3LS/4L60E|8Lug 4:56|3/4 Ton Front|14BFF Rear|Roll Cage|Dove-tailed & Bobbed
loudchevy is offline   Reply With Quote
Old 07-02-2025, 10:19 AM   #6
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

Quote:
Originally Posted by loudchevy View Post
The "project creep" is real for sure, but I think the "might as well" hits harder sometimes.
That's for sure! I'm always thinking "Well, if I'm ever going to do it now is the time."

At least most of the welding is done. Still have lots of areas to grind and fill. Also need to flip the cab and clean up the bottom. Not shooting for perfect but I want to get all the old caked on mud, grease, and undercoating scraped off.
raggedjim is offline   Reply With Quote
Old 07-01-2025, 11:17 AM   #7
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

After welding the holes on the firewall I covered them all with fiberglass reinforced filler just because.

Then I drilled a 1/2" hole and used a square file to make it square for the cable style throttle.
Attached Images
  
raggedjim is offline   Reply With Quote
Old 07-01-2025, 11:20 AM   #8
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

Then I test mounted the gas pedal using a conversion plate. Not sure where I got the plate, I think I purchased it off of this board.
Attached Images
  
raggedjim is offline   Reply With Quote
Old 07-12-2025, 07:36 PM   #9
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

Finally flipped the cab, it was very easy, I don't know why I worried about it so much.

Bottom has thick mud, grease, undercoating combo.
Attached Images
  
raggedjim is offline   Reply With Quote
Old 07-12-2025, 07:41 PM   #10
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

Spent some time scrapping and finally hit it with phosphoric acid.
Attached Images
 
raggedjim is offline   Reply With Quote
Old 07-12-2025, 07:44 PM   #11
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

Then I sprayed the bottom with etching primer and then 2 coats of bed liner. I will probably hit it with one more coat before flipping it back.

It's not perfect but it works for me!
Attached Images
 
raggedjim is offline   Reply With Quote
Old 07-13-2025, 11:29 AM   #12
hewittca
Registered User
 
hewittca's Avatar
 
Join Date: Jun 2014
Location: Mocksville, NC
Posts: 1,835
Re: Previous owner '68

I'm enjoying these updates and motivation because I'm about to embark on the exact same mission with my cab. The underside looks awesome to me! Nice work.
__________________
Builds: Green Gus the 68 C10 | Bluey the 72 1500 | Lowly the 70 C10 | Oscar the 70 C10
-
C10 Concept/Development Photos: Master Thread
hewittca is offline   Reply With Quote
Old 07-13-2025, 11:46 AM   #13
7dee2
Senior Member
 
7dee2's Avatar
 
Join Date: May 2011
Location: Syracuse, Utah
Posts: 2,268
Re: Previous owner '68

Looks great, good job!
__________________
Brett
66 El Camino: BBC, 4sd. Waiting for its turn.
67 Camaro SS: 67 Camaro Build
72 Cheyenne/C10 Super 115" Fleetside: 72 C10 Build
72 Cheyenne/K30 Super 133" Longhorn DRW: 72 K30 Build SOLD
YouTube: https://www.youtube.com/@6dee7-7dee2
7dee2 is offline   Reply With Quote
Old 07-13-2025, 07:09 PM   #14
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

Brett talked me into it!
raggedjim is offline   Reply With Quote
Old 07-15-2025, 07:52 PM   #15
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

Well, I welded them shut...
Attached Images
  
raggedjim is offline   Reply With Quote
Old 07-15-2025, 09:04 PM   #16
zicc1835
Senior Member
 
zicc1835's Avatar
 
Join Date: Mar 2011
Location: Hanover NJ
Posts: 4,842
Re: Previous owner '68

I see AC in the future
zicc1835 is offline   Reply With Quote
Old 07-16-2025, 10:28 AM   #17
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

Quote:
Originally Posted by zicc1835 View Post
I see AC in the future
Either that or a bunch of sweating!
raggedjim is offline   Reply With Quote
Old 07-16-2025, 10:35 AM   #18
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

While I have the cab flipped I am trying to do any work I can do to it to help keep me from having to work overhead. Keeping these noodly arms lifted up for hours plays havoc on my shoulders!
raggedjim is offline   Reply With Quote
Old 07-16-2025, 07:52 PM   #19
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

This is one of those areas. Cutting out and welding the upper windshield frame almost killed me. Would have been much easier and less burning hair if I had waited until I had flipped the cab. Live and learn.
Attached Images
  
raggedjim is offline   Reply With Quote
Old 07-17-2025, 11:10 AM   #20
Roostre
Registered User
 
Roostre's Avatar
 
Join Date: Dec 2018
Location: St. James, MN
Posts: 338
Re: Previous owner '68

This looks great! I was originally thinking about smoothing the tolerance gaps in my cab, but I've given that idea up as my project has drug out too long already.

I am also planning on tipping my cab to paint the bottom of it when I get to that point. The new floor in there has an e-coat on it, but I don't trust that to hold up on external panels like paint will. Although maybe I'll just scuff the e-coat and undercoat it rather than paint; that may be a viable option for me.
Roostre is online now   Reply With Quote
Old 07-17-2025, 02:27 PM   #21
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

Quote:
Originally Posted by Roostre View Post
This looks great! I was originally thinking about smoothing the tolerance gaps in my cab, but I've given that idea up as my project has drug out too long already.

I am also planning on tipping my cab to paint the bottom of it when I get to that point. The new floor in there has an e-coat on it, but I don't trust that to hold up on external panels like paint will. Although maybe I'll just scuff the e-coat and undercoat it rather than paint; that may be a viable option for me.
It feels like this one is dragging out, but the only way for it not to drag out is to ignore things and I hate to do that. I've always top-coated e-coat, not sure if you have to, but I always have.

2 guys can tip the cab easily. Good luck, Rg
raggedjim is offline   Reply With Quote
Old 07-17-2025, 02:51 PM   #22
Roostre
Registered User
 
Roostre's Avatar
 
Join Date: Dec 2018
Location: St. James, MN
Posts: 338
Re: Previous owner '68

Quote:
Originally Posted by raggedjim View Post
It feels like this one is dragging out, but the only way for it not to drag out is to ignore things and I hate to do that. I've always top-coated e-coat, not sure if you have to, but I always have.

2 guys can tip the cab easily. Good luck, Rg
My day job is for an agricultural equipment manufacturer. We have several suppliers that provide parts with e-coat. We always paint the parts even if they are meant to be black on the finished product, and I was told that it is because the e-coat does not hold up well to UV exposure. So my intention is to topcoat any e-coat parts that are exposed to the elements. Example: My outer roof skin was e-coated and I painted the top of it, but did not paint the bottom of it because it is sealed within the roof.
Roostre is online now   Reply With Quote
Old 07-17-2025, 05:14 PM   #23
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 4,102
Re: Previous owner '68

Quote:
Originally Posted by Roostre View Post
My day job is for an agricultural equipment manufacturer. We have several suppliers that provide parts with e-coat. We always paint the parts even if they are meant to be black on the finished product, and I was told that it is because the e-coat does not hold up well to UV exposure. So my intention is to topcoat any e-coat parts that are exposed to the elements. Example: My outer roof skin was e-coated and I painted the top of it, but did not paint the bottom of it because it is sealed within the roof.
It's easy insurance. I think I do it because I used to see rusty aftermarket fenders people had put on and not painted. Not sure if they were e-coat but I ain't taking no chances!
raggedjim is offline   Reply With Quote
Old 07-18-2025, 02:33 PM   #24
68 C10 Driver
Registered User
 
Join Date: Oct 2020
Location: Kathleen, GA
Posts: 753
Re: Previous owner '68

Looks like you are doing everything I did to my cab. It was a lot of work! But cleaning the underside was very satisfying!
Attached Images
    
68 C10 Driver is offline   Reply With Quote
Old 07-18-2025, 02:34 PM   #25
68 C10 Driver
Registered User
 
Join Date: Oct 2020
Location: Kathleen, GA
Posts: 753
Re: Previous owner '68

Here is how the under dash cowl area turned out.
Attached Images
 
68 C10 Driver is offline   Reply With Quote
Reply

Bookmarks


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 03:52 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, vBulletin Solutions Inc.
Copyright 1997-2025 67-72chevytrucks.com