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1 members (Russ_B_10),
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robots. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,050 Posts1,055,643 Members48,426 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Sep 2014 Posts: 77 Shop Shark | | Shop Shark Joined: Sep 2014 Posts: 77 | Does anyone know if GM put any colored markings under their 48 to 54 pickups or on the fire wall etc. Is their a source for this info.? Thanks John.
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | John,
This topic comes up a few times a year.
People have posted photos of various types of crayon(?) markings on the firewall. Some seemed to be codes/words for options (probably used on the assembly line).
| | | | | Joined: Sep 2014 Posts: 77 Shop Shark | | Shop Shark Joined: Sep 2014 Posts: 77 | Any pics ? I am trying to build my 50 3100 like it left Chevrolet . | | | | | Joined: Feb 2008 Posts: 26 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2008 Posts: 26 | On driver side of firewall and underside of hood driver side on my '51 GMC. | | | | | Joined: Dec 2014 Posts: 36 Wrench Fetcher | | Wrench Fetcher Joined: Dec 2014 Posts: 36 | I have a pic of a big yellow "5" next to the voltage regulator on a 1950 3100. 5 window? I don't know. There is a factory photo of the engines on the assembly line with marks on the head and bell housing. Some parts had the date inked stamped. Another way to make it look factory is replicate the overspray on the bottom of the hood and cab. It's ugly but correct. Dustin | | |
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