Pictoral differences found on G4112 vs G506 (more images)
- FDNY4244
- G-Master Sergeant
- Posts: 110
- Joined: Thu Dec 20, 2012 4:01 pm
- Location: NH
Re: Pictoral differences found on G4112 vs G506 (more images
Great topic and pictures Paul !! I never get tired of reviewing this from time 2 time, thanks for posting it !!
-
- G-Colonel
- Posts: 1917
- Joined: Sat Mar 03, 2012 9:09 am
- Location: Western North Carolina
Re: Pictoral differences found on G4112 vs G506 (more images
Came across some more differences. These shift levers were pulled from a 10/42 G506. Notice that one of the levers has an eased edge (older g4112-early g506), and the other is squared edged (late war).
Image of transfer case shift levers from a 10/42 G506 cargo w/winch
Image of same levers as above, notice the different edges on the levers.
Shows the gradual evolution during production.
Image of transfer case shift levers from a 10/42 G506 cargo w/winch
Image of same levers as above, notice the different edges on the levers.
Shows the gradual evolution during production.
1941 G4112 Chevrolet with Hercules dump bed
- JulioMoc
- G-Sergeant First Class
- Posts: 97
- Joined: Fri Oct 17, 2014 7:14 pm
- Location: Montes Claros-MG - Brazil
- Contact:
Re: Pictoral differences found on G4112 vs G506 (more images
Ressurecting this thread after more then a yearforestry4evr wrote:
The dash on my Chevy is exactly equal to this green one. Can you tell me what are the three holes in the lower-middle section for?
Best,
Julio
-
- Sergeant Major of the Gee
- Posts: 456
- Joined: Wed Dec 07, 2011 7:16 am
- Location: Southwest Oklahoma
Re: Pictoral differences found on G4112 vs G506 (more images
Julio
Their is a cover that goes over the three not so round holes in the green dash. The military light switch the ignition switch the dash light switch and your choke and throttle cable attach to the cover or face plate or what ever you want to call it lol. But the holes are their because the back of the switches are larger and the face plate move them out 1/4 inch or more. Well I hope this helps. Phillip
Their is a cover that goes over the three not so round holes in the green dash. The military light switch the ignition switch the dash light switch and your choke and throttle cable attach to the cover or face plate or what ever you want to call it lol. But the holes are their because the back of the switches are larger and the face plate move them out 1/4 inch or more. Well I hope this helps. Phillip
1942 chevy G506
1942 G7113 Tractor
1942 G7113 Tractor
- JulioMoc
- G-Sergeant First Class
- Posts: 97
- Joined: Fri Oct 17, 2014 7:14 pm
- Location: Montes Claros-MG - Brazil
- Contact:
Re: Pictoral differences found on G4112 vs G506 (more images
Thanks Phillip!phillip.w.givens wrote:Julio
Their is a cover that goes over the three not so round holes in the green dash. The military light switch the ignition switch the dash light switch and your choke and throttle cable attach to the cover or face plate or what ever you want to call it lol. But the holes are their because the back of the switches are larger and the face plate move them out 1/4 inch or more. Well I hope this helps. Phillip
Does anyone have some detailed photos of that metal plate so I can make a replica here?
Best,
Julio
-
- G-Colonel
- Posts: 1794
- Joined: Sat Feb 24, 2007 8:14 am
- Location: Becket, MA
Re: Pictoral differences found on G4112 vs G506 (more images
Hi Paul,
Per our email, here are some close up shots of the cowl vent pivot screws in my July '42 G506. Note the small bushing that goes in the hole and then the use of regular 8/32 screws. When you get the chance could you post some shots of yours? I think early trucks like yours have shouldered bolts, the type that are available through the vendors for civilian trucks. If, however, my truck is an anomaly, I think my solution would be to remove the bushings and get the shouldered screws.
(I should note the bushing in the photo below is home-made out of copper. I carelessly lost the original one when I was disassembling it.)
John
Per our email, here are some close up shots of the cowl vent pivot screws in my July '42 G506. Note the small bushing that goes in the hole and then the use of regular 8/32 screws. When you get the chance could you post some shots of yours? I think early trucks like yours have shouldered bolts, the type that are available through the vendors for civilian trucks. If, however, my truck is an anomaly, I think my solution would be to remove the bushings and get the shouldered screws.
(I should note the bushing in the photo below is home-made out of copper. I carelessly lost the original one when I was disassembling it.)
John
-
- G-Colonel
- Posts: 1917
- Joined: Sat Mar 03, 2012 9:09 am
- Location: Western North Carolina
Re: Pictoral differences found on G4112 vs G506 (more images
John,
Those vent hinge bolts on my G4112 were unique shouldered bolts. I suppose the later assembly iterations required less machining.
__________________________________________________________________________________________________________________________________________________________________
Some time ago, there was some discussion about compatibility of gearboxes with civilian trucks as we know the castings on the GI boxes are prone to cracking. My 1940 parts manual lists some steering box components (namely the steering gear thrust bearings and races) that are the same as found in civilian trucks. It is my understanding that the first run of Chevy trucks had an "inherently weak" steering box, and I belive this to be true as of the several early trucks I have seen all had later version steering boxes installed in them. My guess is that the first run GI steering boxes went to the scrap iron bin sometime in the early 1940's, perhaps immediately following a trial run with duals on the steering axle.
Anyway, last year John "42cargo" brought me some parts from a 1946 civilian 1 1/2 ton truck we bought in Houston a couple of years ago. A year later, I have finnaly gotten around to disassembling the civilian steering box to show some of the differences.
Enjoy the show,
Image of G506 (ca 1941-42) steering box on left and 1946 civilian 1 1/2 ton steering box on right. Notice the difference in overall size and that the frame mounting configuration is very different.
Image of G506 pitman arm on top and civilian pitman arm on bottom.
Image of G506 steering wheel on bottom, and civilian on top. The two steering wheels differ in diameter by 3 inches. Also, the civilian steering wheel is splined where it mates to the steering shaft while the G506 steering wheel is not.
Image of 1946 civilian 1 1/2 ton truck horn button components. Notice that virtually nothing is even remotely similar to the military version.
To sum it up, there is almost no similarity between the military and civilian truck steering mechanisms other than both were manufactured by Saginaw Gear. For better or worse, I think we are stuck with working with crack prone GI steering boxes as the civilian box does not look as though it is up to the task.
Paul
Those vent hinge bolts on my G4112 were unique shouldered bolts. I suppose the later assembly iterations required less machining.
__________________________________________________________________________________________________________________________________________________________________
Some time ago, there was some discussion about compatibility of gearboxes with civilian trucks as we know the castings on the GI boxes are prone to cracking. My 1940 parts manual lists some steering box components (namely the steering gear thrust bearings and races) that are the same as found in civilian trucks. It is my understanding that the first run of Chevy trucks had an "inherently weak" steering box, and I belive this to be true as of the several early trucks I have seen all had later version steering boxes installed in them. My guess is that the first run GI steering boxes went to the scrap iron bin sometime in the early 1940's, perhaps immediately following a trial run with duals on the steering axle.
Anyway, last year John "42cargo" brought me some parts from a 1946 civilian 1 1/2 ton truck we bought in Houston a couple of years ago. A year later, I have finnaly gotten around to disassembling the civilian steering box to show some of the differences.
Enjoy the show,
Image of G506 (ca 1941-42) steering box on left and 1946 civilian 1 1/2 ton steering box on right. Notice the difference in overall size and that the frame mounting configuration is very different.
Image of G506 pitman arm on top and civilian pitman arm on bottom.
Image of G506 steering wheel on bottom, and civilian on top. The two steering wheels differ in diameter by 3 inches. Also, the civilian steering wheel is splined where it mates to the steering shaft while the G506 steering wheel is not.
Image of 1946 civilian 1 1/2 ton truck horn button components. Notice that virtually nothing is even remotely similar to the military version.
To sum it up, there is almost no similarity between the military and civilian truck steering mechanisms other than both were manufactured by Saginaw Gear. For better or worse, I think we are stuck with working with crack prone GI steering boxes as the civilian box does not look as though it is up to the task.
Paul
1941 G4112 Chevrolet with Hercules dump bed
- retro-roco
- G-Brigadier General
- Posts: 2498
- Joined: Thu Mar 27, 2003 10:54 am
- Location: Bloomington, IL, USA
Re: Pictoral differences found on G4112 vs G506 (more images
Bump.. I got all excited about finding these NOS Chevy floor boards:
My excitement was tempered slightly when I realized they are NOT G506, but rather G4112 floorboards. Note the location of the battery access hole on the passenger side. Unfortunately they are on an auction, and not for sale directly...
My excitement was tempered slightly when I realized they are NOT G506, but rather G4112 floorboards. Note the location of the battery access hole on the passenger side. Unfortunately they are on an auction, and not for sale directly...
Kirk Gustafson
359th Infantry Regt. 90th Div. WWII HRS
1942 Chevy G506 1-1/2 ton 4x4 Cargo
1943 Ben Hur water trailer
359th Infantry Regt. 90th Div. WWII HRS
1942 Chevy G506 1-1/2 ton 4x4 Cargo
1943 Ben Hur water trailer
-
- G-Colonel
- Posts: 1794
- Joined: Sat Feb 24, 2007 8:14 am
- Location: Becket, MA
Re: Pictoral differences found on G4112 vs G506 (more images
And cue email from Paul ... three ... two ... one ...
-
- G-Colonel
- Posts: 1917
- Joined: Sat Mar 03, 2012 9:09 am
- Location: Western North Carolina
Re: Pictoral differences found on G4112 vs G506 (more images
Mmmm, NOS G4112 floor pans... Too bad I already went with a reproduction, and it is installed.
1941 G4112 Chevrolet with Hercules dump bed
-
- G-Private
- Posts: 3
- Joined: Mon Mar 26, 2012 9:05 am
- Location: San Francisco CA
- Contact:
Re: Pictoral differences found on G4112 vs G506 (more images
Have been following the progress of your 1-1/2 ton. I need some guidance on the shock absorbers on my 41 G-4112. You obviously have filled yours and I need to do the same, but the manual does not identify the "fluid". What have you found to use
-
- G-Colonel
- Posts: 1917
- Joined: Sat Mar 03, 2012 9:09 am
- Location: Western North Carolina
Re: Pictoral differences found on G4112 vs G506 (more images
Dude, first off, you cant come right out of the gate with 3 posts from an undisclosed location stating you have a 41 g4112 without any pictures...this is what makes this forum interesting.Mineplanter wrote:Have been following the progress of your 1-1/2 ton. I need some guidance on the shock absorbers on my 41 G-4112. You obviously have filled yours and I need to do the same, but the manual does not identify the "fluid". What have you found to use
I used hydraulic jack oil in my shocks. Once upon a time there was a true shock oil, but I was never able to find a source. The viscosity of jack oil and shock oil is close to the same, and the anti-corrosion properties are similar.
Paul
1941 G4112 Chevrolet with Hercules dump bed
-
- G-Colonel
- Posts: 1917
- Joined: Sat Mar 03, 2012 9:09 am
- Location: Western North Carolina
Re: Pictoral differences found on G4112 vs G506 (more images
Dusting off this old thread...
I got a side-by-side dump bed difference for you all. On the left is a g-4112 Hercules bed, and on the right is a g-506 Hercules bed. Fourteen months difference in age but a world different. The early bed is constructed with considerably thicker metal than the later one. Ram and cylinders appear to be the same.
I got a side-by-side dump bed difference for you all. On the left is a g-4112 Hercules bed, and on the right is a g-506 Hercules bed. Fourteen months difference in age but a world different. The early bed is constructed with considerably thicker metal than the later one. Ram and cylinders appear to be the same.
1941 G4112 Chevrolet with Hercules dump bed
- 40 Chevy
- G-First Lieutenant
- Posts: 641
- Joined: Sat Dec 23, 2006 2:57 pm
- Location: Kent Island, Md.
Re: Pictoral differences found on G4112 vs G506 (more images
Paul;
Just wondering, is thata cargo bed that someone put on a cargo. and made it a cargo dump, if not, the early beds were definately 'Beefier".
John G
Just wondering, is thata cargo bed that someone put on a cargo. and made it a cargo dump, if not, the early beds were definately 'Beefier".
John G
1940 G4112
1942 G509 969A
1942 G116 series 2
1944 G116 series 5
1942 Sterling HC 165 tractor
1944 Autocar U7144T
1942 G509 969A
1942 G116 series 2
1944 G116 series 5
1942 Sterling HC 165 tractor
1944 Autocar U7144T
-
- G-Colonel
- Posts: 1794
- Joined: Sat Feb 24, 2007 8:14 am
- Location: Becket, MA
Re: Pictoral differences found on G4112 vs G506 (more images
That's a dump bed. I had the same thing on my truck. The top and sides look like a cargo bed, but the under structure is very different.
John
John
Who is online
Users browsing this forum: No registered users and 53 guests